Q: Abs and esp light on

asked by on January 22, 2017

Have abs & esp light on already changed abs module wheel speed sensor brakes new tires & did aliment and lights still on notice brake lights don't come on looked for brake light switch burn could not find one

My car has 110000 miles.
My car has an automatic transmission.

The ABS (anti-lock braking) and ESP (electronic stability program) lights usually come on at the same time because the two systems share components. WHen the lights are on, it means that the controller has seen a malfunction and stored a fault code describing that malfunction. These can be read with a Mercedes specific scan tool, the generic scanners probably won’t do the trick. That being said, it’s quite possible that the brake light switch is your problem. It is a common failure, and is a relatively easy fix. The brake light switch is located high up on the brake pedal, you have to assume a pretty uncomfortable position to see it. If you would like to have this car properly diagnosed, You can contact Your Mechanic to have a technician come to your home or office and read the codes on your ABS to determine exactly what your need. They can fix that Brake light switch if necessary too.

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

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

Overheating and hissing

You stated your coolant was about halfway. It's an important detail to know where you are checking your coolant level. Are you checking in the coolant overflow jug, or in the radiator after you remove the radiator cap. Also, you...

Loud cracking noise underneath them can have a nic loud cracking noise underneath then car almost dies out

Hey there, thanks for writing in about your 2007 Lincoln MKX. Unfortunately, without hearing the noise or conducting a few tests firsthand, it is not possible to determine the cause of your concern. Since you say you are hearing the...

Whining when accelerating and slight grinding when letting off the gas.

Hi, thanks for writing in. I don't wish to 2nd-guess, but your symptom description suggests that either the differential or the transmission may have been run low on fluid, but was refilled after a couple of weeks? Not clear on...

Related articles

What Sensors Make the ABS Work?
When When we are discussing ABS systems it is good to note the year and make of your vehicle because ABS systems have evolved quite a bit over the years, but you also have to know how the ABS system...
How Disc Brakes Work
Car disc brake systems are made up of the rotor, brake pads, pistons, and caliper. The pistons push the pads into the rotor to slow or stop your car.
Mercedes-Benz Certified Pre-Owned (CPO) Car Program
Shopping Shopping for a used Mercedes-Benz vehicle often leads many drivers to consider certified pre-owned options. Mercedes-Benz is one of many manufacturers that have a certified pre-owned (CPO) program. Each car manufacturer structures their CPO program differently; read on to...