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Mercedes A class ignition problems

AutoUncle is dein unabhängiger Berater für die besten Auto Deals. Alle Gebrauchtwagen gesammelt aus über 800 Portalen und Händlerwebseiten A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL) As noted, Mercedes owners share this faulty ignition problem more often than other drivers. This is largely due to its complex electrical systems, and extensive, theft-deterrent features designed to protect your Mercedes Benz. While these systems deliver a flawless performance in good working order, they can cause severe problems when they fail

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A common problem with Mercedes-Benz W204 C-Class, X204 GLK, 172 SLK, and 207, W212 E Class is the steering lock module failure, which prevents the car from starting. When the steering lock fails, the key still turns the ignition, but it will not start the engine One of the Mercedes Benz ignition problems is an ignition lock and tumbler failure. A car has an ignition lock cylinder that consists of the tumbler and key assembly which is needed to start a car. An ignition lock cylinder is the keyhole that drivers use to power up their cars. The ignition lock and tumbler failure can cause these problems via YouTube Captur This video shows how to fix the problem when your Mercedes key is stuck and won't turn in the ignition. The video is specific to the W202 chassis (C-Series 1..

By the way the Mercedes price for a 2.5 ignition computer is £950! I have a spare one which works fine, which you could try out on your car to see if it fixes it. The problem is that I don't own it I borrowed it off someone so it might be difficult to manage! You're welcome to try it if you find yourself in the Gloucestershire area Some of the common problems that the Mercedes Benz experience before hitting 100,000 miles are ignition failure, catalytic converter failure, and spark plug failure. Reports say that ignition failures usually start after hitting 75,000 miles After ferreting around for information and advice, some of it from my non-MB service garage, (who sent me to a garage with a STAR) I've been informed that the starter problem is in the ignition switch immobiliser system, (without them using the STAR to find it out, yet, and the resulting cost)

Intermittent Ignition Key Faults Vehicle not responding to remote If the EIS unit becomes faulty, the key will not turn & start the engine, this function will be de-activated and the module will be locked for security purposes. This will stop the engine from starting Ignition problem of the 2002 Mercedes Benz C Class 1. Failure Date: 07/15/2002. Consumer was informed that the brain of the vehicle had given out, causing consumer to have to drive 30-40 mph on the interstate, vehicle also seems to have a possible electrical problem, the interior lights blink, the interior mirror lights work intermittently, the. During our diagnostics we can confirm if it's either Electronic Ignition Switch (EIS) or Electronic Steering Lock (ESL) fault, or may advise on changing both units, and maybe even the keys themselves. If the column lock is warning light is on, some will insist on replacing the complete steering column, this is NOT required Ignition problem of the 2001 Mercedes Benz Cl Class 1 Failure Date: 08/15/2006 I have a 2001 mercedes cl 500 that I paid 90k for and has less than 40 k miles That question and the symptoms mentioned are typical of an ignition switch problem, adjusting the key in the slot or even removing the bunch of keys on the same ring may temporarily allow you to start the car normally however in the long term the symptoms will reoccur and the switch will need to be replaced

Mercedes EZS EIS Ignition Switch Problem, Cause, Solution

I had a steering lock issue with my Mercedes Benz 2008. The problem was fixed by a Mercedes Benz dealer here in London. Now, the engine check and airbag lights are permanently on and the car is banging into gear and very slow. There was no such issues with the car before the steering locked up. I will keep this forum posted on developments Another typical problem found in most Mercedes-Benz models before they hit 100,000 miles is ignition failure. Most Mercedes-Benz models develop ignition failure after 75,000 miles. The work of the ignition system is to form an electric spark in the engine combustion chamber, at a precise time, which will help ignite the air/fuel mixture Ignition Switch problem 2. Failure Date: 06/29/2017. The contact owns a 2008 mercedes-benz C300. While the vehicle was parked, the contact opened the door and the interior lighting was not illuminated, the steering wheel was locked, the instrument cluster lighting was dim, the vehicle would not start, and the gear shifter would not engage What to look for when buying a Mercedes A Class 2013 - 2018, covering common problems to check for and overall vehicle reliability

Ignition Switch Lock Control Mercedes-Benz C-CLASS W203

Mercedes A Class ECU & Air Mass/Flow Meter. This ECU is a very common fault for the Mercedes A Class, it causes the engine management light to come on and fault code for the Air Mass/Flow Meter to be stored in the ECU's memory. This fault can cause the engine to run rough and idle poorly The ignition switch in a Mercedes sends an electrical signal to the starter allowing the vehicle engine to function. Over time, the switch may begin to wear out. Once the switch fails, you won't be able to start your vehicle. Because newer Mercedes models also use laser-cut transponder keys, you may need to have. C class w205 2015 Model c250d ignition problem I have an Automatic A-Class Mercedes 2005 model. I am having trouble starting it, I turn the plastic key and the ignition clicks but won't start. the lights and all electrics work ok, the battery is ok, it has a new starter motor. If I wobble the gear shift a few times it starts. It seems as though there is a connection loose in the transmission

Drivers Share Problems with Mercedez Benz Electrical Ignitio

  1. Your Mercedes. W204/2007/220CDI. Jul 29, 2012. #1. No previous problems. AA can't repair. Battery seems fine. Strong headlights etc. Mileage display etc comes on, but when I put the key in the ignition no usual warning lights come on when I turn the key and no starter motor either
  2. After ferreting around for information and advice, some of it from my non-MB service garage, (who sent me to a garage with a STAR) I've been informed that the starter problem is in the ignition switch immobiliser system, (without them using the STAR to find it out, yet, and the resulting cost)
  3. Ignition switch failures While some of these can be fixed at home with purchased parts, if you're concerned that the problem is greater be sure to go to a certified mechanic for help. To purchase parts like a master brake cylinder , fuses, and replacement belts to repair your Mercedes try shops like sparepartstore24.co.uk - brake

Symptoms of a Faulty Ignition Key in a Mercedes - Import

This article applies to the Mercedes-Benz C-Class w204 (2007-2014). You count on your Mercedes-Benz to be there for you and start every time you crank over the ignition, but sometimes machines refuse to play along. A car that won't start is as good as dead, and not being able to drive isn't only inconvenient, but could also be dangerous Asked by Rich9300 Dec 06, 2015 at 03:06 AM about the 2001 Mercedes-Benz E-Class E AMG 55. Question type: Maintenance & Repair. I began to have occasional starting problems a couple of years ago. When I. turned the electronic key the car would not turn over - there was some brief. noise but it wouldn't turn over, though eventually it would start

Mercedes Intermittent Ignition Problem - MB Medi

In order to start your Mercedes-Benz with the key instead of the push button, you will need to access the ignition. This is done easily, as it is located right behind the push button. Simply remove the button and insert the key instead, and you're all set to go. As you can see, learning how to use the push button start feature in your. This was reporting to the engine management system that it had over heated and resulted in the ignition being inhibited for 2 minutes after putting the key in the ignition. This problem was quickly diagnosed and fixed by the dealer. General Comments: The previous A Class I had was an A160SWB ACS, I wanted a bit more power and this certainly. ignition and starting position is locked this car is c200 mercedes benz problems 4 Answers. thanks for your letter i need resolution about my problem car how can i start becouse my car is not working ignition and worning lights at the remote control key i replace the battery so nothing ho.. These instructions are based on the Mercedes-Benz owner's manual. This procedure should apply to the fourth generation of Mercedes Benz A-Class (2019 2020 2021 model years). Hopefully, the article 2019-2020 Mercedes-Benz A-Class Service Minder Light Reset (W177) can solve your problem. Good Luck Even if they all did, and let's also assume that there are twice or even ten times the number of failures that required a steering lock or ignition switch to be replaced, heck, let us assume 1000 vehicles were affected, Mercedes Benz sold approximately 250,000 C-Class vehicles between 2008 affixed 2011

Latest deals from Buyacar. Mercedes-Benz A Class A250e AMG . £28,980. or £383 per month. Mercedes-Benz A Class A 200 AMG . £24,995. or £381 per month. MERCEDES-BENZ A CLASS 1.3 A180 A. So if you experience problems of the type above do not be conned by some ill informed Garage be it a Mercedes Benz garage or not difficulty in selecting 3rd & 5th gears and in Bruce's case any gears as has been experienced by several A class owners as well as Phillipa and Bruce above, can be interpreted at a very expensive excuse for. Mercedes-Benz dealers will inspect and replace the transistors free of charge when the recall begins in May. Owners may contact Mercedes-Benz at 1-800-367-6372 or NHTSA at 1-888-327-4236 (TTY 1-800-424-9153). MORE RECALL INFORMATION: Mercedes C. NEWS: Mercedes Recalls Thousands of Cars in U.S. for Sensor Comments: 2000 Mercedes E320, both sets of keys will not turn in the ignition. Key battery is good, car battery is good. Once smart key is inserted I hear an electronic click sound, however key will not turn. Lights on dash come on. I believe it is the electronic ignition switch which is VIN specific and must be installed by a Mercedes dealer

Mercedes-Benz A Class: Common Problems and Solutions

My Key Won't Turn Ignition Mercedes-Benz Problem - MB Medi

The 2014 Mercedes-Benz E-Class engine cranks over but won't start: There are many possible causes, but we know it is neither a battery nor a starter problem. Just remember: a vehicle will always require air, fuel, and the ignition to operate. Check the fuel. You may be out of fuel, or the fuel isn't getting to your engine Bert Rowe's-Mercedes-Benz 'A'-class info. Replacing Spark plugs, Special tools, As many of you will have found having your Spark plugs replaced by Mercedes-Benz workshops at approx £80.00 is a very expensive extra on your service bill, and yet the majority of us can do it yourself, in fact would prefer to do it ourselves Mercedes EIS EZS (Electronic Ignition Switch) Recoding and Fault Repair Service. Rated 5.00 out of 5 based on 4 customer ratings. ( 4 customer reviews) £40.00. ( £48.00 inc VAT) SKU: 160320. We can repair any problem in the immobiliser of your Mercedes-Benz. Rest assured with our professional and reliable service

Mercedes-Benz won't start Step by Step Troubleshooting

  1. Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report.
  2. Mercedes Benz SLK owners have reported 13 electrical system related problems since 1996. Table 1 shows the 6 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (8 problems). The second most common problem is related to the vehicle's ignition switch (1 problem)
  3. Mercedes-Benz C-Class in Colorado, United States Sep 2014 - Feb 2017: Sep 2014 18000 mi: MBrace system not functioning. Message Service not activated displayed. Called MBrace and account was current no issues from their side of the system
  4. Fuse box diagram (location and assignment of electrical fuses and relays) for Mercedes-Benz A-Class (A140, A160, A170, A190, A210)
  5. Asked by EkpeMan Nov 18, 2013 at 06:21 AM about the 2007 Mercedes-Benz C-Class C 230 Sport Question type: Maintenance & Repair I want to buy a C230 mercedes benz car between 2003 and 2007 model, I need to know what the common problems with these car are
  6. Reliability & common problems. This section covers the potential reliability issues that you might have with the Mercedes-Benz R171. Click on the buttons below to read more about the typical problems that fall outside the scope of routine maintenance. Complex hardtop roof. The hardtop roof on the R171 is actually pretty good
  7. Mercedes e class alarm going off. Mercedes E270 2003 model alarm and indicators flashing randomly. unlocking car / putting key in ignition or starting does not prevent the noise and flashing to stop. also hearing a whirring noise below hood. how can i reset the alarm or disable. Clicking this will make more experts see the question and we will.

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  1. The plastic cracked causing the leak. Anonymous, IN (2014 Mercedes-Benz M-Class ML550 5.5-L V8 turbo) Overheating. A plastic part that distributes coolant snapped and dumped all the fluids onto.
  2. Cruise control. Blind spot monitor knocked out cruise. $3000 repair on a car with few miles. Anonymous, IA (2012 Mercedes-Benz E-Class E350 BlueTec 3.5-L V6) Exterior lights (other than.
  3. Mercedes-Benz ML-Class (1998-2005) W163 - Spark Plugs. Spark plugs are used to ignite the fuel-air mixture in the engine's combustion camber. New spark plugs are a must for any good tune-up. Check for abnormal pitting or charred plug ends. Also check each plug against each other
  4. ate, but the car won't start. In order for it to fully transmit the signal, the card needs to be in close.

This article applies to the Mercedes-Benz C-Class (2007-2014). If your horn stops working, it can be annoying and dangerous. If you want to warn the car next to you that is drifting into your lane, you'll find that hard to do if your horn doesn't work.irst check the fuse and relay that supply power to the horns Mercedes-Benz M-Class Suspension Problems. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercedes-Benz M-Class problems occur, check out our car reliability stats Mercedes C Class Fuel Cut Off Switch Location. January 26, 1986. W124 031 M104 980 Decel Fuel Cut Off Switch Replacement Youtube. Fuel Shut Off Actuator Youtube. Where Is Fuel Pump Relay And Fuel Shut Off Switch Located On A 98. Solved Does Anyone Know The Location Of The Fuel Pump Fixya

Find the best used 2021 Mercedes-Benz A-Class near you. Every used car for sale comes with a free CARFAX Report. We have 267 2021 Mercedes-Benz A-Class vehicles for sale that are reported accident free, 177 1-Owner cars, and 84 personal use cars Continue reading to see a few of the many Mercedes ignition coil problems that Experts have solved. Could a bad ignition coil cause the Check Engine light to illuminate on a 2008 Mercedes C300 with 37,000 miles? There are a large number of possible reasons for the Check Engine light to come on

Engine Problem: Diesel Won't Shut Off When the Key is Turned Off. Could be any number of things causing the problem. Proper diagnosis is a must! On older Mercedes diesel engines models: 1975 to 1976 115 chassis 300D, all 123, 126, 201 and 124 chassis diesels from 1977 to 1993 the engine shutoff is controlled by vacuum (not electrical) Mercedes EIS/EZS electronic system is like vehicle heart (Electronic Ignition Switch) but sometimes fails making big trouble for us. The hardware being the switch is like a small socket in the dash to insert your key into - only, it is not a traditional looking key Mercedes-Benz A-Class W169 Service Maintenance Due Reminder Reset. Step by step tutorial on how to reset the Oil SERVICE C DUE maintenance reminder indicator message light on Mercedes-Benz W169 (A 150, A 170, A 200, A 200 Turbo, A 160 CDI, A 180 CDI, A 200 CDI) from the year 2004-2005-2006-2007-2008-2009-2010-2011-2012. STEP

2013-2018 Mercedes-Benz A-Class Service Due Light Reset (A-200 A-250) - In 2011, Mercedes-Benz has published a sketch of the new A-Class and a month later photographs of the Concept A. The Concept A had three doors and a 2.0-liter engine with 210 hp. Concept A was first shown to the public on April 19, 2011, at the Auto Shanghai RELATED: Mercedes-Benz Is Issuing a Recall to Fix a Previous Recall The second-worst problem for the Mercedes-Benz C300 was the 2010 model year's unpredictable failure to start. Four owners reported this problem, which the online car complaint website rated as pretty bad. Owners reported that they were able to turn the key in the car's ignition and the lights and radio turned on

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  1. Mercedes-Benz A-Class (W169; 2005-2012)>> Fuse Layout Mercedes-Benz A-Class 2013-2018 Cigar lighter (power outlet) fuses in the Mercedes-Benz A-Class are the fuses #70 (Rear center console socket), #71 (Luggage compartment socket) and #72 (Front cigarette lighter, interior power outlet) in the Passenger Compartment fuse box
  2. One of the most common problems we see on older Mercedes. Electrical . Troubleshooting an Electrical Problem . How to Unstick a Stuck Ignition Key on a 1973 to 1995 Mercedes Benz. Electrical . Special Tool for EASY Removal and Installation of Auto Fuses. 1998 to 2006 W202 W203 W204 W210 W211 W220 and M Class . Transmission
  3. The A-Class has come a long way since the early days. First introduced in 1997 as some weird scaled-down MPV-type contraption that'd fall over at the merest sight of an elk, it would gradually morph over the years into a more conventional prestige hatchback that would form the entry-point into Mercedes-Benz ownership, and delight image-conscious buyers on a budget along the way
  4. What are common reasons my Mercedes-Benz S430 key won't turn? While there are a variety of reasons your Mercedes-Benz S430 key won't turn, the most common 3 are a binding steering column/lock, an ignition switch issue, or a problem with the ignition key
  5. Mercedes-Benz C-Class Electrical Problems. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercedes-Benz C-Class problems occur, check out our car reliability stats
  6. Research the 2021 Mercedes-Benz A-Class with our expert reviews and ratings. Edmunds also has Mercedes-Benz A-Class pricing, MPG, specs, pictures, safety features, consumer reviews and more. Our.
1999 Mercedes ML320 immobilizer / ignition questionNeutral Safety Switch Troubleshooting 84 300D - PeachParts

Mercedes-Benz C-Class in California, United States Dec 2014 - Nov 2017: Jan 2015 10700 mi: auto start engine problems. car would stall randomly at lights. May 2015 4000 m The R230 SL-Class cars were fitted with a brake-by-wire system called Sensotronic Brake Control (SBC). This system caused one of the biggest Mercedes-Benz recalls. Once the affected cars have been sorted out by the recall, the system is reasonably reliable. However, the SBC pumps in these cars have a finite lifespan, which is monitored by the. Mercedes-Benz E-Class: Common Problems. While all Mercedes-Benz vehicles are in the upper echelon of luxury vehicles, at the end of the day, they're still cars. And all cars have issues. Continue reading below for a better understanding of the most common problems associated with the E-Class w212 2. Sit in the vehicle with all doors closed. 3. Lock all doors using the Lock/Unlock switch on the door. 4. Insert and withdraw the ignition key 7 to 9 times within 10 seconds (do not turn the key, just insert and withdraw). 5. The 4 way flasher indicator on the dash should flash once or twice. 6 American Best Locksmith offers the best Mercedes Benz car key replacement services in and within a 30 mile radius of Philadelphia, PA, Los Angeles, CA, Wilmington, DE, and Houston, TX. Our highly qualified auto locksmiths have gone through extensive training so they can change your car keys in a professional, efficient manner

Mercedes-Benz Ignition Lock ESL Problems - YOUCANI

The 2010 Mercedes-Benz C300 has 67 NHTSA complaints for the electrical system at 59,637 miles average. (Page 1 of 4 Seals and/or weather-stripping. Very noisy from wind and road at all speeds over about 30 mph. Anonymous, AL (2013 Mercedes-Benz C-Class C250 1.8-L 4 Cyl turbo) the sunroof does not seal. Mercedes G-Class Intermittent Wiper Relay 1994-2000 : only. $49.13: Mercedes G-Class Turn Signal Relay A463 544 00 32: only. $59.00: Mercedes G-Class Ignition Lock 1990-2000. only. $285.00: Mercedes G-Class Ignition Lock 1990-2000. RIGHT HAND DRIVE: only. $285.00: Mercedes G-Class Ignition Lock Diesel 1990-1995. only. $285.00: Mercedes G-Class. Mercedes Ignition Lock Repair & Replaced. Extraction Of Broken Key. Replacement Mercedes Remote Control. Mercedes Shell Keys / Cases. Las Vegas Automotive Locksmith. 5630 West Charleston Blvd #B. Las Vegas NV 89146. Tell: (702) 720-3337. www.lasvegasautomotivelocksmith.com (813)490-7200 Mercedes Lost Remote Key Made Holiday FL. SouthFloridaLocksmith is the best emergency Mercedes key-smith solution in Holiday FL. Our task force are completely insured, amalgamated bonded or consented, bring not less then 4 years of in field experience in the industry, standing by 24/7 provided with latest vehicle locks and keys equipment ready to come down to you immediately for.

Mercedes-Benz W203 Ignition Switch Replacement - (2001S430 Ignition and instrument panel problems - MBWorld

Mercedes Benz ML350 Ignition Problems ️ Everything You

Recall no. 14V177000. Mercedes-Benz USA, LLC (Mercedes) is recalling certain model year 2008-2011 C300, C300 4Matic, C350, and C63 AMG vehicles manufactured January 26, 2007, through July 13, 2011. Product Details. Mercedes 300SL 1992, Ignition Control Module by RMT®. What is an Ignition Control Module? - An ignition control module is a computer that controls the ignition coil or the ignition coil's firing time. The ignition control module is the heart of an automobile's ignition system. It regulates spark generation within the engine Order Mercedes Benz S500 Ignition Coil online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store Corrosion (water-based paint) Rust was one of the top problems with Mercedes-Benz vehicles produced between 1993 and 2004. This is because around 1993, Mercedes-Benz implemented a more environmentally friendly, water-based paint.Coupled with steel that isn't very corrosion resistant and no galvanizing process, most W220 models are very susceptible to corrosion Anonymous, NM (2014 Mercedes-Benz GLK-Class GLK250 2.1-L 4 Cyl diesel) The front pads had worn out completely and required new rotors as well. An $850 front brake repair in less than 50,000 miles.

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An ignition coil, or spark coil, is an induction coil which transforms the batterys low voltage into the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. In plain English, you need an ignition coil to start your car. If your car is backfiring, misfiring, having problems starting, or stalling, it could. Mercedes-Benz C-Class (2001-2007) W203 - Spark Plugs. Spark plugs are used to ignite the fuel-air mixture in the engine's combustion camber. New spark plugs are a must for any good tune-up. Check for abnormal pitting or charred plug ends. Also check each plug against each other

Mercedes Ignition Problem - YouTub

Videos 2021 Mercedes Benz C-Class W206 Videos Thread: Mercedes-Benz: 4: Feb 23, 2021: Pictures 2021 Mercedes Benz C-Class W206 Pictures Thread: Mercedes-Benz: 17: Feb 23, 2021: Speedometer: Mercedes-Benz Museum Inside No. 24/2021: Mercedes-Benz Newsroom: 0: Feb 13, 2021: S. The new 2021 Mercedes-Benz EQA EV: Mercedes-Benz: 108: Jan 20, 202 The 1999 Mercedes-Benz C-Class engine cranks over but won't start: There are many possible causes, but we know it is neither a battery nor a starter problem. Just remember: a vehicle will always require air, fuel, and the ignition to operate. Check the fuel. You may be out of fuel, or the fuel isn't getting to your engine OEM 1998-02 Mercedes-Benz W210 W208 E430 E300 Ignition Switch w/Key 2085450108 (Fits: Mercedes-Benz CLK320) $110.66. Was: $125.75. Free shipping. or Best Offer

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How to Repair / Fix Stuck Ignition Key - Mercedes (worn

Mercedes Sprinter Intermittent Turn Indicator - Cure. More often than not the number one cause of indicator problems on the Mercedes Sprinter range is due to the failure of a small control relay located on the lower edge of the fuse board on the steering column. Faults are usually intermittent function of the indicators and hazard warning. 2017 Mercedes-Benz C-Class Repair Histories. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2017 Mercedes-Benz C-Class problems occur, check out our car reliability stats

1998 Mercedes Benz V230 specs, Engine size 2

Symptoms of a failing Ignition Control Module Mercedes

2009 Mercedes-Benz C-Class consumer reviews. $32,900 starting MSRP. 4.4 (66 reviews) 89% of drivers recommend this car. Rating breakdown (out of 5): Comfort 4.5. Interior design 4.4. Performance 4. If your C0035 Mercedes Benz T Class check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system Pre-owned Mercedes-Benz GL-Class models are available with a 4.7 L-liter gas engine or a 3.0 L-liter diesel engine or a 5.5 L-liter gas engine, with output up to 382 hp, depending on engine type Jun 15, 2021. #2,260. A Erlkönig is a camouflaged prototype of a car (not only for Mercedes). While the manufacturers try to keep the exact appearance of these vehicles secret, photojournalists, so-called Erlkönig hunters, want to sell their photos to specialist magazines or the tabloid press. Prev Mercedes E-Class Re-Manufactured EIS. An EIS is a vital part for any vehicle, because it communicates with the key and the ECU, allowing (or preventing) the car to start. An Mercedes's Ignition Switch must be programmed to the Key & ECU. It stores your vehicle's VIN, engine configuration software that controls the engine, Key & Security.