The damage to the ESL/ELV should be the easiest way to trigger Benz failures. In a case that the ESL is damaged, it usually requires to replace it by a new ESL module or ELV simulator.
Possible reasons to cause ESL damage:
1)The electric motor is damaged
In most cases it’s the aging electric motor that cannot push the bolt to unlock without enough torque force.
2)The internal chip is locked
Rarely it happens: the chip is locked. Actually it’s not damaged but some data errors happen.
Solutions:
1.An emergency solution is to hit the lower part of the steering column for making the electric motor restore the bolt. If done, drive to repair shops immediately.
2.In the case that the electric motor is damaged we just need to replace it. Besides, the new improved electric motor is more durable. However, the problem is the high cost of a brand new ESL module (In some areas it costs about $2,000).
3.When the chip is locked, we need to desolder the chip, repair it by professional tools and rematch it. Only professional locksmiths can do the job by themselves.
4.Replacing ESL by an ELV simulator could be an easier way. There is no mechanical components that may lock the steering wheel any more, but still signals fed back to the vehicle to unlock the steering wheel.
The ways to match an ESL or an ELV simulator by Xhorse VVDI MB on bench (same procedures):
1)Complete connections on bench as the diagrams and instruction.
2)Get the password through “Password Calculation” as the prompts.
For online calculation, it costs 1 token each time.
3)Read EIS data.
Press
EIS Tools>>Read EIS data
Paste the password on “Key Pass”, then
Press “Save EIS data” to save the file.
4)Press
ESL Tools>>Read ESL data>>Load VVDI-MB EIS data
Check “Auto clear TP and personalized”.
Click “Write” to finish the procedures.
Done!
This is what may cause Benz ESL damage and how to solve it.
Technical support by: www.xhorsestore.co.uk
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