Mercedes EIS Repair – EZS Immobiliser Key Module – ESL + KEY Repair Service
Sinspeed EIS Repair Services
Welcome to Sinspeed’s Mercedes-Benz EIS Repair Service. We specialise in repairing and replacing faulty EIS units for Mercedes-Benz vehicles. Our team of experienced technicians have years of experience in diagnosing and repairing EIS units, and we use only the latest diagnostic equipment and software to ensure that your EIS unit is repaired to the highest standard. Furthermore, we extend our service to the testing and repair of the Mercedes-Benz ESL (Electronic Steering Lock) and Key too!
What Is An EIS & How Does It Work?
The Electronic Ignition Switch (EIS) is a vital component in the Mercedes-Benz vehicle’s security system. It is responsible for controlling the vehicle’s immobiliser, which prevents the engine from starting without the correct key. The EIS is also responsible for controlling other security features such as the central locking system and the alarm.
The EIS works by communicating with the key through a transponder chip. When the key is inserted into the ignition, the EIS sends a signal to the key, which responds with a unique code. If the code matches the one stored in the EIS, the immobiliser is deactivated, the ESL (Electronic Steering Lock) is disengaged and the engine can be started. If the code does not match, the immobiliser remains active, and the engine will not start.
The EIS is a complex system that requires specialised knowledge and equipment to diagnose and repair. If the EIS is faulty, it can cause a range of issues, including the engine not starting, the central locking system not working, and the alarm not arming or disarming. In such cases, our highly experienced technicians are at hand to extensively test and repair all types of EIS and ESL failures.
Which Model Mercedes Has The EIS Module
The EIS module is factory fitted to almost all models and we’re getting units sent in right across the board, in fact Mercedes-Benz vehicles from the C-Class, E-Class, S-Class, CLS-Class, CLK-Class, CL-Class, ML-Class, GL-Class, R-Class, SL-Class, and SLK-Class are all fitted with the Electronic Ignition Switch (EIS) system. You can expect the EIS module to be supported and installed on the following Chassis list:
W164 / W168 / W169 / W202 / W203 / W204 / W208 / W209 / W210 / W211 / W212 / W215 / W219 / W220 / W221 / W230 / W639
Below we have compiled an extensive list of vehicles which we have already seen fitted with the EIS and have had units in for repairs. Don’t worry if your vehicle is not listed as this is not a complete list.
Make | Chassis | Model | Engine | Engine Code | Fuel | Year (From) |
---|---|---|---|---|---|---|
Mercedes | W168 | A160 | 1700 CDi | OM668DE17AR | Diesel | 1998 |
Mercedes | W168 | A160 | 1700 CDi | OM668DE17LAR | Diesel | 2001 |
Mercedes | W168 | A170 | 1700 CDi | OM668DE17LA | Diesel | 1998 |
Mercedes | W168 | A170 | 1700 CDi | OM668DE17LA | Diesel | 2001 |
Mercedes | W169 | A150 | 1500 16v | M266E15 | Petrol | 2004 |
Mercedes | W169 | A160 | 1500 16v BlueEfficiency | M266E15 | Petrol | 2004 |
Mercedes | W169 | A160 | 2000 CDi | OM640DE20LAR | Diesel | 2004 |
Mercedes | W169 | A160 | 2000 CDi Blue | OM640DE20LAR | Diesel | 2009 |
Mercedes | W169 | A170 | 1700 16v | M266E17 | Petrol | 2004 |
Mercedes | W169 | A180 | 2000 CDi | OM640DE20LAR | Diesel | 2004 |
Mercedes | W169 | A200 | 2000 16v | M266E20 | Petrol | 2004 |
Mercedes | W169 | A200 | 2000 16v Turbo | M266E20AL | Petrol | 2005 |
Mercedes | W169 | A200 | 2000 CDi | OM640DE20LA | Diesel | 2004 |
Mercedes | W202 | C200 | 2000 16v | M111E20 | Petrol | 1996 |
Mercedes | W202 | C200 | 2000 16v Kompressor | M111E20ML | Petrol | 1996 |
Mercedes | W202 | C200 | 2200 CDi | OM611DE22LAR | Diesel | 1998 |
Mercedes | W202 | C220 | 2200 CDi | OM611DE22LA | Diesel | 1998 |
Mercedes | W202 | C230 | 2300 16v Kompressor | M111E23ML | Petrol | 1996 |
Mercedes | W202 | C240 | 2400 V6 | M112E24 | Petrol | 1997 |
Mercedes | W202 | C280 | 2800 V6 | M112E28 | Petrol | 1997 |
Mercedes | W202 | C43 | 4300 V8 AMG | M113E43 | Petrol | 1997 |
Mercedes | W202 | C55 | 5500 V8 AMG | M113E55 | Petrol | 1998 |
Mercedes | W203 | C180 | 1800 16v Kompressor | M271E20 | Petrol | 2002 |
Mercedes | W203 | C180 | 2000 16v | M111E20E | Petrol | 2000 |
Mercedes | W203 | C200 | 1800 16v Kompressor | M271E18ML | Petrol | 2002 |
Mercedes | W203 | C200 | 1800 CGi 16v Kompressor | M271DE18ML | Petrol | 2003 |
Mercedes | W203 | C200 | 2000 16v Kompressor | M111E20ML | Petrol | 2000 |
Mercedes | W203 | C200 | 2200 CDi | OM611DE22LAR | Diesel | 2000 |
Mercedes | W203 | C200 | 2200 CDi | OM646DE22LA | Diesel | 2003 |
Mercedes | W203 | C200 | 2200 CDi | OM646DE22LAR | Diesel | 2003 |
Mercedes | W203 | C220 | 2200 CDi | OM611DE22LA | Diesel | 2000 |
Mercedes | W203 | C220 | 2200 CDi | OM646DE22LA | Diesel | 2004 |
Mercedes | W203 | C230 | 1800 16v Kompressor | M271E18ML | Petrol | 2004 |
Mercedes | W203 | C230 | 2500 V6 | M272E25 | Petrol | 2005 |
Mercedes | W203 | C240 | 2600 V6 | M112E26 | Petrol | 2000 |
Mercedes | W203 | C270 | 2700 CDi | OM612DE27LA | Diesel | 2000 |
Mercedes | W203 | C280 | 3000 V6 | M272E30 | Petrol | 2005 |
Mercedes | W203 | C30 | 3000 CDi AMG | OM612DE30LA | Diesel | 2003 |
Mercedes | W203 | C32 | 3200 V6 AMG | M112E32ML | Petrol | 2001 |
Mercedes | W203 | C320 | 3000 CDi | OM642DE30LA | Diesel | 2005 |
Mercedes | W203 | C320 | 3200 V6 | M112E32 | Petrol | 2004 |
Mercedes | W203 | C350 | 3500 V6 | M272E35 | Petrol | 2005 |
Mercedes | W203 | C55 | 5500 V8 AMG | M113E55 | Petrol | 2004 |
Mercedes | W203 | CLK200 | 1800 CGi 16v Kompressor | M271DE18ML | Petrol | 2003 |
Mercedes | W204 | C180 | 1800 16v Kompressor | M271KE18MLR | Petrol | 2007 |
Mercedes | W204 | C180 | 2200 CDi Blue | OM651DE22LAR | Diesel | 2010 |
Mercedes | W204 | C200 | 1800 16v Kompressor | M271E18ML | Petrol | 2007 |
Mercedes | W204 | C200 | 1800 CDi Blue | OM651DE18LA | Diesel | 2008 |
Mercedes | W204 | C200 | 2200 CDi Blue | OM651DE22LAR | Diesel | 2009 |
Mercedes | W204 | C220 | 2200 CDi | OM651DE22LA | Diesel | 2008 |
Mercedes | W204 | C220 | 2200 CDi | OM651DE22LA | Diesel | 2011 |
Mercedes | W204 | C220 | 2200 CDi | OM651DE22LAR | Diesel | 2007 |
Mercedes | W204 | C220 | 2200 CDi | OM651DE22LAR | Diesel | 2007 |
Mercedes | W204 | C220 | 2200 CDi Blue | OM651DE22LA | Diesel | 2009 |
Mercedes | W204 | C230 | 2500 V6 | M272KE25 | Petrol | 2007 |
Mercedes | W204 | C250 | 2200 CDi Blue | OM651DE22LA | Diesel | 2008 |
Mercedes | W204 | C250 | 2200 CDi Blue | OM651DE22LA | Diesel | 2011 |
Mercedes | W204 | C280 | 3000 V6 | M272KE30 | Petrol | 2007 |
Mercedes | W204 | C300 | 3000 CDi Blue | OM642DE30LA | Diesel | 2011 |
Mercedes | W204 | C300 | 3000 V6 | M272KE30 | Petrol | 2009 |
Mercedes | W204 | C320 | 3000 CDi | OM642DE30LA | Diesel | 2007 |
Mercedes | W204 | C350 | 3000 CDi | OM642DE30LA | Diesel | 2009 |
Mercedes | W204 | C350 | 3000 CDi Blue | OM642DE30LA | Diesel | 2009 |
Mercedes | W204 | C350 | 3000 CDi Blue | OM642LSDE30LA | Diesel | 2011 |
Mercedes | W204 | C350 | 3500 V6 | M272KE35 | Petrol | 2007 |
Mercedes | W204 | C350 | 3500 CGi V6 Blue | M272DE35 | Petrol | 2008 |
Mercedes | W219 | CLS280 | 3000 V6 | M272E30 | Petrol | 2008 |
Mercedes | W219 | CLS300 | 3000 V6 | M272E30 | Petrol | 2009 |
Mercedes | W219 | CLS320 | 3000 CDi | OM642DE30LA | Diesel | 2004 |
Mercedes | W219 | CLS350 | 3000 CDi | OM642DE30LA | Diesel | 2008 |
Mercedes | W219 | CLS350 | 3500 V6 | M272E35 | Petrol | 2004 |
Mercedes | W219 | CLS500 | 5000 V8 | M113E50 | Petrol | 2004 |
Mercedes | W219 | CLS500 | 5500 V8 | M273E55 | Petrol | 2006 |
Mercedes | W219 | CLS55 AMG | 5500 V8 Kompressor | M113KE55 | Petrol | 2004 |
Mercedes | W210 | E200 | 2000 16v | M111E20 | Petrol | 1995 |
Mercedes | W210 | E200 | 2000 16v Kompressor | M111E20ML | Petrol | 1997 |
Mercedes | W210 | E200 | 2000 16v Kompressor EVO | M111E20EVO | Petrol | 2000 |
Mercedes | W210 | E200 | 2200 CDi | OM611DE22LAR | Diesel | 1998 |
Mercedes | W210 | E200 | 2200 CDi | OM611DE22LAR | Diesel | 1999 |
Mercedes | W210 | E220 | 2200 CDi | OM611DE22LA | Diesel | 1998 |
Mercedes | W210 | E220 | 2200 CDi | OM611DE22LA | Diesel | 1999 |
Mercedes | W210 | E240 | 2400 V6 | M112E24 | Petrol | 1997 |
Mercedes | W210 | E240 | 2600 V6 | M112E26 | Petrol | 2000 |
Mercedes | W210 | E270 | 2700 CDi | OM647DE27LA | Diesel | 1999 |
Mercedes | W210 | E280 | 2800 V6 | M112E28 | Petrol | 1997 |
Mercedes | W210 | E320 | 3200 CDi | OM613DE32LA | Diesel | 1999 |
Mercedes | W210 | E320 | 3200 V6 | M112E32 | Petrol | 1997 |
Mercedes | W210 | E420 | 4200 V8 | M119E42 | Petrol | 1996 |
Mercedes | W210 | E430 | 4300 V8 | M113E43 | Petrol | 1997 |
Mercedes | W210 | E500 | 5000 V8 | M119E50 | Petrol | 1996 |
Mercedes | W210 | E55 | 5500 V8 AMG | M113E55 | Petrol | 1997 |
Mercedes | W210 | E60 | 6000 V8 AMG | M119E60 | Petrol | 1996 |
Mercedes | W211 | E200 | 1800 16v Kompressor | M271E18ML | Petrol | 2003 |
Mercedes | W211 | E200 | 1800 16v Kompressor | M271E18ML | Petrol | 2006 |
Mercedes | W211 | E200 | 2200 CDi | OM646DE22LAR | Diesel | 2003 |
Mercedes | W211 | E200 | 2200 CDi | OM646DE22LAR | Diesel | 2006 |
Mercedes | W211 | E220 | 2200 CDi | OM646DE22LA | Diesel | 2002 |
Mercedes | W211 | E220 | 2200 CDi | OM646DE22LAR | Diesel | 2006 |
Mercedes | W211 | E220 | 2200 CDi | OM646DE22LAR | Diesel | 2007 |
Mercedes | W211 | E240 | 2600 V6 | M112E26 | Petrol | 2002 |
Mercedes | W211 | E270 | 2700 CDi | OM647DE27LA | Diesel | 2002 |
Mercedes | W211 | E280 | 3000 CDi | OM642DE30LAR | Diesel | 2006 |
Mercedes | W211 | E280 | 3000 V6 | M272E30 | Petrol | 2005 |
Mercedes | W211 | E280 | 3200 CDi | OM648DE32LAR | Diesel | 2005 |
Mercedes | W211 | E320 | 3000 CDi | OM642DE30LA | Diesel | 2005 |
Mercedes | W211 | E320 | 3200 CDi | OM648DE32LA | Diesel | 2003 |
Mercedes | W211 | E320 | 3200 V6 | M112E32 | Petrol | 2002 |
Mercedes | W211 | E350 | 3500 V6 | M272E35 | Petrol | 2005 |
Mercedes | W211 | E420 | 4000 CDi | OM629DE40LA | Diesel | 2006 |
Mercedes | W211 | E500 | 5000 V8 | M113E50 | Petrol | 2002 |
Mercedes | W211 | E500 | 5500 V8 | M273E55 | Petrol | 2006 |
Mercedes | W211 | E55 AMG | 5500 V8 | M113E55ML | Petrol | 2003 |
Mercedes | W164 | ML280 | 3000 CDi | OM642DE30LAR | Diesel | 2005 |
Mercedes | W164 | ML300 | 3000 CDi | OM642DE30LAR | Diesel | 2009 |
Mercedes | W164 | ML300 | 3000 CDi | OM642DE30LAR | Diesel | 2010 |
Mercedes | W164 | ML320 | 3000 CDi | OM642DE30LA | Diesel | 2005 |
Mercedes | W164 | ML350 | 3000 CDi | OM642DE30LA | Diesel | 2009 |
Mercedes | W164 | ML350 | 3000 CDi | OM642DE30LA | Diesel | 2010 |
Mercedes | W164 | ML350 BlueTec | 3000 CDi | OM642DE30LA | Diesel | 2009 |
Mercedes | W164 | ML350 | 3500 V6 | M272E35 | Petrol | 2005 |
Mercedes | W164 | ML420 | 4000 CDi | OM629DE40LA | Diesel | 2005 |
Mercedes | W164 | ML500 | 5000 V8 | M113E50 | Petrol | 2005 |
Mercedes | W164 | ML500 | 5500 V8 | M273KE55 | Petrol | 2008 |
Mercedes | W164 | ML63 AMG | 6200 V8 | M156E63 | Petrol | 2006 |
Mercedes | W220 | S280 | 2800 V6 | M112E28 | Petrol | 1998 |
Mercedes | W220 | S320 | 3200 CDi | OM613DE32LA | Diesel | 1999 |
Mercedes | W220 | S320 | 3200 CDi | OM648DE32LA | Diesel | 2002 |
Mercedes | W220 | S320 | 3200 V6 | M112E32 | Petrol | 1998 |
Mercedes | W220 | S350 | 3700 V6 | M112E37 | Petrol | 2002 |
Mercedes | W220 | S430 | 4300 V8 | M113E43 | Petrol | 1998 |
Mercedes | W220 | S430 | 4300 V8 | M113E43 | Petrol | 2003 |
Mercedes | W220 | S500 | 5000 V8 | M113E50 | Petrol | 1998 |
Mercedes | W220 | S500 | 5000 V8 | M113E50 | Petrol | 2003 |
Mercedes | W220 | S55 AMG | 5500 V8 | M113E54 | Petrol | 1999 |
Mercedes | W220 | S55 AMG | 5500 V8 Kompressor | M113E54ML | Petrol | 2002 |
Mercedes | W220 | S600 TwinTurbo | 5500 V8 | M275KE55LA | Petrol | 2002 |
Mercedes | W220 | S65 TwinTurbo AMG | 6000 V12 | M275KE60LA | Petrol | 2004 |
Mercedes | W221 | S300 | 3000 V6 | M272E30 | Petrol | 2006 |
Mercedes | W221 | S320 | 3000 CDi | OM642DE30LA | Diesel | 2006 |
Mercedes | W221 | S350 Blue | 3000 CDi | OM642DE30LA | Diesel | 2009 |
Mercedes | W221 | S350 BlueTec | 3000 CDi | OM642DE30LA | Diesel | 2009 |
Mercedes | W221 | S350 | 3500 V6 | M272E35 | Petrol | 2006 |
Mercedes | W221 | S400 Hybrid | 3500 V6 | M272E35 | Petrol | 2009 |
Mercedes | W221 | S420 | 4000 CDi | OM629DE40LA | Diesel | 2006 |
Mercedes | W221 | S450 | 4600 V8 | M273E46 | Petrol | 2006 |
Mercedes | W221 | S500 TwinTurbo Blue | 4600 V8 | M278DE46AL | Petrol | 2011 |
Mercedes | W221 | S500 | 5500 V8 | M273E55 | Petrol | 2005 |
Mercedes | W221 | S600 TwinTurbo | 5500 V12 | M275KE55LA | Petrol | 2006 |
Mercedes | W221 | S63 TwinTurbo AMG | 5500 V8 | M157DE55LA | Petrol | 2010 |
Mercedes | W221 | S65 TwinTurbo AMG | 6000 V12 | M275KE60LA | Petrol | 2006 |
Mercedes | W639 | Viano V200 | 2000 16v | M111E20 | Petrol | 1999 |
Mercedes | W639 | Viano V200 | 2200 CDi | OM646DE22LA | Diesel | 2003 |
Mercedes | W639 | Viano V200 | 2200 CDi | OM646DE22LA | Diesel | 2006 |
Mercedes | W639 | Viano V200 Blue | 2200 CDi | OM651DE22LAR | Diesel | 2010 |
Mercedes | W639 | Viano V220 | 2200 CDi | OM646DE22LA | Diesel | 2003 |
Mercedes | W639 | Viano V300 | 3000 CDi | OM642DE30LA | Diesel | 2006 |
Mercedes | W639 | Viano V320 | 3200 V6 | M112E32 | Petrol | 2003 |
Mercedes | W639 | Viano V350 | 3500 V6 | M272E35 | Petrol | 2007 |
Mercedes | W639 | Viano V350 | 3700 V6 | M112E37 | Petrol | 2004 |
Mercedes | W639 | Vito 109 | 2200 CDi | OM646DE22LAR | Diesel | 2003 |
Mercedes | W639 | Vito 109 | 2200 CDi | OM646DE22LAR | Diesel | 2006 |
Mercedes | W639 | Vito 111 | 2200 CDi | OM646DE22LA | Diesel | 2003 |
Mercedes | W639 | Vito 111 | 2200 CDi | OM646DE22LA | Diesel | 2006 |
Mercedes | W639 | Vito 111 Blue | 2200 CDi | OM651DE22LAR | Diesel | 2010 |
Mercedes | W639 | Vito 115 | 2200 CDi | OM646DE22LA | Diesel | 2003 |
Mercedes | W639 | Vito 120 | 3000 CDi | OM642DE30LA | Diesel | 2006 |
Mercedes | W639 | Vito 122 | 3200 V6 | M112E32 | Petrol | 2003 |
Mercedes | W639 | Vito 123 | 3500 V6 | M272E35 | Petrol | 2007 |
Mercedes | W639 | Vito 123 | 3700 V6 | M112E37 | Petrol | 2004 |
Common EIS Problems
Like any other electronic component, the EIS unit is prone to faults and failures. Here are some of the common problems people experience with the Mercedes-Benz EIS unit:
- Failed Ignition: One of the most common issues with the EIS unit is a failed ignition. This can be caused by a faulty key, a damaged EIS unit, or a problem with the wiring.
- Key Not Turning: Another common issue is when the key does not turn in the ignition. This can be caused by a worn-out key, a damaged EIS unit, or a problem with the steering lock.
- Immobiliser Failure: The EIS unit is responsible for controlling the immobiliser, which prevents the car from starting without the correct key. If the immobiliser fails, the car will not start, and the EIS unit may need to be repaired or replaced.
- Keyless Entry Failure: The EIS unit is also responsible for controlling the keyless entry system. If the keyless entry system fails, the car may not unlock or lock properly, and the EIS unit may need to be repaired or replaced.
In conclusion, the Mercedes-Benz EIS unit is a critical component of the car’s security system, and any faults or failures can cause significant problems. If you experience any of the above issues, it is essential to have your EIS unit checked by a professional.
In some cases, a failing EIS or ESL can be the result of either human error or another fault on the vehicle and some of the most common reasons are listed below:
- Jump Starting Whilst Key Is Inserted
- Power Surge
- Low Battery Voltage
All of the above can cause memory loss to the EIS module and it cannot be repaired or re-flashed using the Mercedes STAR diagnostic system.
Sinspeed EIS Repair Service
When it comes to a faulty EIS (Electronic Ignition Switch) unit in a Mercedes-Benz, it is often better to repair it rather than replace it with a new part. This is because the EIS unit is a complex component that is linked to other systems in the car, such as the immobiliser and keyless entry.
Replacing the EIS unit with a new one can be expensive and time-consuming, as it requires reprogramming the keys and other systems. Additionally, a new EIS unit may not be available for direct purchase and special order items can cause further significant delays in getting your vehicle back on the road.
At Sinspeed, we offer a comprehensive EIS repair service that covers all aspects of diagnosing and fixing faults with your EIS unit. Our service includes:
- Diagnosing the fault with your EIS unit: Our experienced technicians use the latest state-of-the-art technology and leading diagnostic equipment to identify the root cause of the problem with your EIS unit. We’re able to fully communicate with the unit on our test bench, power it up and simulate it as if it were operating on your vehicle, allowing us to confirm faults and identify the root cause of any failures.
- Repairing or replacing faulty components: We use genuine OE components to repair or replace any faulty parts in your EIS unit, and where possible, uprate components to eliminate any known weaknesses and ensure that it is restored to full working order.
- Recoding the EIS unit to work with your existing keys: We can recode your EIS unit to work with your existing keys, saving you the cost and hassle of having to replace them or have them reprogrammed.
- Testing the EIS unit to ensure that it is functioning correctly: After completion of the EIS Repair, we rigorously test your unit to ensure that it is functioning correctly before returning it to you.
- Lifetime warranty for complete peace of mind: We offer a lifetime warranty on all of our EIS repairs, giving you complete peace of mind that your EIS unit is in safe hands.
EIS Replacement Options
When it comes to the Mercedes EIS, it is a common failing part that can cause a lot of frustration for vehicle owners. While repairing the original part is often the best option, there are times when a replacement may be necessary.
At Sinspeed, we understand the importance of using genuine parts and repairing components whenever possible – not only does it reduce complications on the vehicle but we should all do our part to be carbon-neutral. That’s why we always recommend trying to repair the original EIS before considering a replacement. Not only is this the most cost-effective option, but it also ensures that the vehicle is using the part that was specifically designed for it.
However, there are situations where a replacement may be necessary. In these cases, we offer high-quality replacement parts that are fully compatible with the vehicle. Our team of experts can program the replacement part so that there is no need for any recoding when it is re-installed back on the vehicle. This makes the replacement process quick and easy and ensures that the vehicle is back on the road as soon as possible.
Any replacements offered will be genuine parts that meet and exceed OE specifications. This ensures that the replacement part will perform just as well as the original, and will provide reliable service for years to come. In fact, it will also be covered by the Sinspeed Lifetime Warranty for complete peace of mind.
At Sinspeed, we pride ourselves on our expertise and attention to detail when it comes to EIS repairs. Our technicians have years of experience in working with Mercedes-Benz vehicles, and we use only the latest diagnostic equipment and genuine OE components in our repairs. So if you’re experiencing issues with your EIS unit, get in touch with us today to see how we can help.
Commonly Asked Questions
- What if it is my ESL or Key that’s faulty – What should I do?
We always recommend sending all three parts to us so that we can independently test the units and also test them in circuit alongside each other. We can remanufacture all three parts if required and any repaired units are returned with a Lifetime warranty for complete peace of mind. - Will Mercedes EIS programming be required?
No – we backup all the programming data before remanufacturing the units. Our remanufactured units are returned fully plug & play and will self-calibrate when fitted back to the vehicle. - Can you offer a Mercedes EIS replacement?
Certainly – if your unit is for any reason beyond repair, we can offer a replacement unit and program it on our bench so that no further coding is required when fitting to the vehicle. - I’ve been told my model of Mercedes does not have an ESL?
Not all Models are fitted with an ESL, some models are controlled through the auto gearbox system and in such cases we will only require the EIS and ignition Key. - Do you have a Mercedes EIS removal guide?
No – we do not offer any removal / fitting instructions and always recommend that the removal and fitting is carried out by a competent technician.
Check out our list of the most common part numbers below. Don’t worry if your part number is not listed, this is not a complete list and there are many more we have seen and successfully repaired.
Part Numbers | Part Numbers | Part Numbers |
---|---|---|
3300.0301 | 210 545 02 08 Q5 | 639 545 01 08 |
3300.2301 | 210 545 00 08 | 4033861060206133 |
3300.0201 | 215 545 02 08 | 639 545 05 08 |
3300.22.05 | 211 545 10 08 | 8000305550206123 |
3300.1109 | 215 545 08 08 | 2035869051606106 |
3300.2418 | 209 545 19 08 | 6014913971606128 |

Ajaz is a seasoned automotive electronics engineer with deep expertise in remanufacturing vehicle electronics. He has developed skills in all areas of the automotive field, from rebuilding hydraulic steering components, and mechanical gearboxes and reworking intricate vehicle electronics. Ajaz also acquired Bodyteq, a London-based vehicle bodyshop where he has developed extensive knowledge in automotive refinishing.
Alongside his automotive career, Ajaz has built a career in the IT industry, gaining accredited certification as an AWS Certified Cloud Practitioner, Cloud Architect, and Search Engine Optimisation (SEO) specialist.
I have a 2005 Mercedes W639 Vito and everything works as it should (central locking, Steering lock,Dash lights etc). The problem is it does not turn the starter motor over and there does not seem to be a live feed going to the starter.
Could this be the EIS or does the feed come via the ECU.
Thanks Chris
Hi Chris
Thanks for getting in touch,
We have sent you an email with more details.
Kind Regards
Sophie
SINSPEED
Hi
when using the keyfob to open the car it unlocks and immobiliser turns off but the dash lights do not turn on, when i insert key the steering goes to preset memory and seat also, i can turn the key all the way to start but nothing happens. my car is also equipped with keyless go which still works perfectly, so is this a definite fault in the eis?
Hello Kenny
Thanks for getting in touch,
We have sent you an email with full details and pricing about your query.
Kind Regards
Sophie
SINSPEED
Hi are you able to repair my Ezs My car wont start even though when i put the key in it turns but not doing anything the ignition lights do not come on and i cant hear the usual clicking noise when i insert the key. I ran a diagnostic and it said EZS failed. Please can you help
Hello Tobi
Thanks for getting in touch,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
i Have a 2009 Sprinter and the key suddenly won’t turn in the lock. After investigating the Technician reprogrammed and replaced the entire unit but the problem remained. What’s the next step? Thanks
Hello Mark
Thanks for getting in touch,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
Hi, I have a problem with my Vito EIS. The key turns, the engine starts but as soon as I release the key it clicks back and the engine cuts out.
Is this something you could repair and what would be the cost?
Thanks
Jim
Hello Jim
Thanks for getting in touch,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
Hi have els problem with w176 battery went flat with key in ignition, can you repair if so how much,thanks for your time 07599****35,or 01242 67****
Hello Timothy
Thanks for getting in touch,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
Hi there,
I have a sprinter and unfortunately someone has broken in and stolen my whole ignition eis unit. Do you know how much it would cost for a new unit and to get reprogrammed to my current locks and keys. Thanks
Hello Frances
Thanks for getting in touch,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
Mercedes vito wont recognise keys. I guess It’s the EIS, battery was run down as result of standjng so long. Can you givd me price on repair please.
Hello Martin
Thanks for getting in touch with us,
We have sent you an email with full details and pricing.
Kind Regards
Sophie
SINSPEED
Hi, I have a Mercedes c180 w203 which had a flat battery. Jump started it and it ran for a minute before cutting off. Now engine won’t crank even with new battery. Instrument panel lights up, gear changes detected on panel even though it sticks in park. All fuses and relays checked and ok. just wont crank. Could it be EIS? Thank, Maxwell
Hello Maxwell
Thank you for your enquiry,
We have sent you an email with more details.
Kind Regards
Sophie
SINSPEED
hi i have a 2002 SL500 Mercedes its been acting very strange key will start the engine but push button start wont work.
Doors unlock/lock sometimes clock says 0.00 then after starting sets itself.
Parking sensor switch stuck on.
several other electrical function work/dont work at will.
could this be the EIS Switch?
Regards
Mark
Hello Mark
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