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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 22801
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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My name is ***** ***** i have a mercedes mlmodel (163)

Customer Question

Customer: hello sir. my name is ***** ***** i have a mercedes ml(###) ###-####model (163)
JA: Thanks. Can you give me any more details about your issue?
Customer: the ESP BAS light keeps showing, and every time it shows the vehicle doesn't respond to acceleration.... it doesn't go off, but it does not respond when i accelerate....i have to switch it off and then on again. what could be the issue? many thanks
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Submitted: 1 year ago.
Category: Mercedes
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

You may have quite a few things going on. It may be an engine performance issue such as the electronic throttle control throttle body, a vacuum leak or intake restriction, inaccurate MAP sensor signal, or it may be directly related to the ABS/ESP systems. If you have acceleration issues then it's most likely an engine related concern.

The warning lights are coming on because the ESP module is seeing an issue that will prevent ESP, ABS and traction control functions and is setting a fault code. The first step in diagnosing the problem will be to see what fault codes are setting using a scan tool or code reader.