Safety systems
WARNING
Driving with the brake warning lamp illuminated can result in an accident. Have your brake system checked immediately if the brake warning lamp stays on. Do not add brake fluid before checking the brake system.
Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be seriously burned.
Display messages | Possible causes/consequences and Solutions |
The red brake system warning lamp comes on while the engine is running. A warning tone also sounds. |
Risk of accident There is not enough brake fluid in the brake fluid reservoir.
Do not add brake fluid. This will not correct the malfunction. |
The yellow ABS warning lamp is lit while the engine is running. |
Risk of accident ABS (Anti-lock Brake System) is deactivated due to a malfunction. ESP® (Electronic Stability Program), BAS (Brake Assist), hill start assist and ESP® trailer stabilization, for example, are therefore also deactivated, for example. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.
If the ABS control unit is faulty, there is also a possibility that other systems, such as the navigation system or the automatic transmission, will not be available. |
The yellow ABS warning lamp is lit while the engine is running. |
Risk of accident ABS is temporarily unavailable. ESP®, BAS, EBD (electronic brake force distribution), hill start assist and ESP® trailer stabilization, for example, are therefore also unavailable. Self diagnosis is not yet complete. For example, the on-board voltage may be insufficient. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.
If the warning lamp is still on:
|
The yellow ABS warning lamp is lit while the engine is running. A warning tone also sounds. |
Risk of accident EBD is faulty. Therefore, ABS, BAS, hill start assist and ESP® trailer stabilization, for example, are also not available due to a malfunction. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.
|
The red brake warning lamp, the yellow ESP® and ESP® OFF warning lamps and the yellow ABS warning lamp are lit while the engine is running. |
Risk of accident ABS and ESP® are faulty. Therefore, BAS, EBD, hill start assist and ESP® trailer stabilization, for example, are also not available due to a malfunction. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.
|
The yellow ESP® warning lamp flashes while the vehicle is in motion. |
Risk of accident ESP® or traction control has intervened because there is a risk of skidding or at least one wheel has started to spin. Cruise control is deactivated.
For exceptions: (). |
The yellow ESP® warning lamp flashes while the vehicle is in motion. |
At least one wheel is spinning and the electronic traction
system is deactivated to prevent the brakes on the drive wheels from overheating.
The electronic traction system switches back on again as soon as the brakes have cooled down. The display message disappears and the warning lamp goes out. |
The yellow ESP® OFF warning lamp is lit while the engine is running. |
Risk of accident ESP® and ESP® trailer stabilization are deactivated. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin.
If ESP® cannot be activated:
|
The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running. |
Risk of accident ESP®, BAS, hill start assist and ESP® trailer stabilization are not available due to a malfunction. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. The brake system continues to function normally, but without the functions listed above.
|
The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running. |
Risk of accident ESP®, BAS, hill start assist and ESP® trailer stabilization are temporarily unavailable. ESP® is temporarily unavailable. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. Self diagnosis is not yet complete. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.
If the warning lamp is still on:
|
The red brake system warning lamp comes on while the vehicle is moving. A warning tone also sounds. |
You are driving with the parking brake applied.
|
The red SRS warning lamp is lit while the engine is running. |
Risk of injury The restraint systems are malfunctioning. The air bags or ETDs may either be triggered unintentionally or, in the event of an accident, not be triggered at all.
|
See also:
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