What does it mean when the ASR light comes on?

What does it mean when the ASR light comes on?

The ASR (a form of traction control) is switch-able but defaults to being on when the engine is started. The ASR light will stay on if it detects or thinks there is a fault with the system, i.e. a wheel, sensor, tyre etc.

What is ASR on Mercedes Benz?

Mercedes Acceleration Slip Regulation (ASR) System Troubleshooting. Basically, ASR II combines the electronic and hydraulic components of ABS with cruise control/idle speed control. To prevent wheel slip, ASR can apply the rear brakes individually to provide a differential lock effect and also control the throttle.

What is the BAS light on a Mercedes?

What does BAS ESP ABS light mean on a Mercedes-Benz? Let’s first take a look at what each of these acronyms means. BAS stands for Brake Assist System. It provides additional braking power in case of emergency situations.

How do you turn off ASR on a Mercedes?

You asked for how to disable the ASR-system: unplug the round connector plug in the side off the ASR-pump and the automatic failure check will force the system to go off. The same happens if any of the plugs belonging to ABS or ASR systems are off.

Why does my Mercedes ASR light keep coming on?

Step 1: Ensure that the main battery on your Mercedes-Benz is holding a proper charge. Mercedes-Benz cars are very sensitive to low voltage. An old battery can be the primary cause of BAS/ASR lights staying on. It is common for BAS / ASR lights to come on with a dead battery. It takes a while for a discharged battery to charge fully.

What does ABS Bas, ASR, ABS lights mean?

What ASR, BAS, ABS lights mean. Common problems and possible solutions. What do ABS BAS ASR lights mean? If any of these lights turns on and stay ON once you start to drive the car it means there is a problem with one of the following systems or related sensors. Step 1: Ensure that the main battery on your Mercedes-Benz is holding a proper charge.

How does the brake light switch work on a Mercedes?

The switch doesn’t only turn on the brake lights on the rear, but the input from the switch is used by other systems including ABS, ASR and BAS. To check if the brake light switch is the problem pay close attention when the BAS/ASR lights come on.

What’s the problem with my Mercedes W140 S500?

The EFP is Electronic Accelerator Pedal and N4/1 is the Accelerator Control Unit. So it looks like your Accelerator Control Unit didn’t receive any CAN signal from your accelerator pedal. I would bet the accelerator pedal is marginal or the wiring between the pedal and the control unit is faulty.