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.
Can you turn off 4matic?
To disable the 4-Matic operation, flip up the “test lever” between the wind screen fluid tank and expansion chamber. That will completlely bypass the transfer case, and it will be 100% 2WD. Do not drive prolonged around in test modus (2WD) without a good reason.
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.
Why is the battery on my Mercedes Benz not working?
Hint: Starter Problem or Low Battery This may seem obvious, but an old battery is the root of many headaches and can cause all sorts of malfunctions on Mercedes-Benz cars. How old is the battery on your Mercedes-Benz?
Why is my brake light not working on my Mercedes?
Step 2: Check the brake light switch. The brake light switch is probably one of the main cause that triggers BAS/ASR light problems. 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.
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.