Q: Blinking of ESP and ABS activation with auto-braking on bumpy roads on a 2002 MI ML320

asked by on

I have a 2002 MI ML320. Recently, it has started something weird--ESP's blinking on a speedometer, triangle thing flashes and activates the ABS. Brakes like auto-braking but it happens only when I go on bumpy roads.

You’ve got a problem with the speed system on that car and those things are very complex. What you’d want to do is watch my video "fixing insanely complex modern cars," and you’ll see how complicated your car is.

Your Mercedes Benz really needs what is called a star tester hookup. Star tester is 26,000 dollars and it takes years to learn how to operate those things. So you are most likely going to have to go to a Mercedes professional.

The technician is going to need a star tester if they are going to work on that system because it’s very complex. I have a star tester, and to tell you the truth, every time I end up working on one of those systems I generally never end up fixing them. Because when I tell a customer "here’s what we’ve got to start out with, that’s going to cost you 2500 dollars," they just say "ugh" and they live with it or get rid of the car. If you’d like, a technician from YourMechanic can diagnose your ABS light issue and let you know if there are any more practical repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Blinking of ESP and ABS activation with auto-braking on bumpy roads on a 2002 MI ML320

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Throttle position sensor needs resetting

The ESP system may have a bad ground on the left hand shock tower causing the problem to happen intermittently. I recommend seeking a certified mechanic, such as one from YourMechanic, to come and test your vehicle for you and...

Q: When driving uphill the vehicle looses most of power,only goes 25 miles per hour,then shakes when restarting

Lack of power and shaking can be caused by a number of components. Misfiring can reduce power and cause shakes. Misfires can be ignition related like from bad spark plugs or ignition coils. Also from sensors such as the crankshaft...

Q: Q: ABS/brake lights on

Typically when a vehicle has the ABS light appear on, the brake light will appear right along with it. When this happens, the next step would be to use a automotive scanner to communicate with the ABS module. This will...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.