Mercedes Benz key and ignition issues / not starting

ESL Electric steering lock Issues:
One of the most common faults is that the ESL not works, this prevents you from turning the key and starting the engine.
Some models with ESL’s we can fix up to 2014:
– Mercedes C-Class
– Mercedes CLS-Class
– Mercedes E-Class
– Mercedes GLK-Class
– Mercedes Sprinter

You will need to remove and send us your ignition unit and ESL, we will diagnose and repair any fault you may have with it. We will need you to also send all keys you have for the vehicle with the unit.

Common Mercedes EIS / EZS Immobilizer Key Module Problems and Repairs:

Symptoms we can diagnose, and repair is:

– Unable To Turn The Key
– Unable To Start The Car
– Turn The Key – But Car Won’t Start
– 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. It is very unfortunate but also a very common problem as there are many reasons as to why these units fail. 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 or corruption of the EIS module and it cannot be repaired or re-flashed using the usual Mercedes diagnostic systems. At this point most people will advise you to purchase a new ignition unit which can work out extremely expensive. One of the main problems is the CPU chip inside fails.

Mercedes GL, ML R series ignition failure w/164/W166:

Last scenario is for the W164/W166 2009 – 2013 GL, R ML trucks. These EIS’s fail often and need to be repaired or fixed. Some symptoms Remote works, but the key does not turn.

Best Rate Locksmiths can help you with all of the above onsite or by module mail in.