Mercedes-Benz Parking Brake Inoperative See Owner’s Manual Warning

Mercedes-Benz Parking Brake Inoperative See Owner's Manual Warning
Mercedes-Benz Electronic Parking Brake ( EPB ) See Owner ‘s Manual in most cases comes on because the parking brake actuator at one of the buttocks wheels is sticking .
Mercedes-Benz Parking Brake Inoperative – See Operator ‘s Manual comes on during heavy rain or when you drive through body of water puddles or mud. Parking brake inoperative messages may appear after a cable car wash .
Mercedes-Benz parking brake warnings may besides appear when the vehicle is in motion and the driver ‘s doorway is opened. The parking brake may automatically apply and then handout .


Mercedes Parking Brake See Owners Manual

  • Red parking brake warning on dashboard
  • Both the red and the yellow parking brake symbols may come on 
  • Parking brake icon flashing in the instrument cluster
  • Parking Brake – See Operator’s Manual
  • Parking Brake Nonfunctional – Visit Workshop
  • Electronic parking brake malfunction see owners manual
  • Noise when operating parking brakes. 

Temporary Fix

Pullover and set the transmission in Park. Please turn off the ignition, then turn it back on. Pull the parking brake switch and keep it pulled for 10 seconds, then release. Start the engine, and the light, in most cases, will turn off.  here is a number of coarse problems that cause the Parking Brake See Owner ‘s Manual warn to stay on.

The Mercedes-Benz parking bracken warning comes on when one of the back electronic parking brake actuators sticks due to corrosion .
Removing both rear wheels and lubricating the parking brake using lithium-based spray penetrating lubricant will, in most cases, fix the problem .

Common Causes

The parking brake imperative problem is common on Mercedes-Benz models with electronic parking brakes such as the S-Class, GL-Class, and most 2015 or newer models .
The problem can besides be the motor inside the electronic park brake ( behind the rear brake caliper ) which can besides break and trigger the Parking Brake. See Owner ‘s Manual .

Electric parking brake module /actuator

If you have applied the park brakes a few times, you should be familiar with the sound on parking brakes being applied .
If you do n’t hear the parking brakes engage when you press the Park button, the electronic parking brake module or actuator/motor. Another symptom of a faulty parking brake motor is a loud, atrocious screeching noise when you try to apply or release the brake .
Bad Mercedes parking brake actuator caused parking brake inoperative fault
This is a common trouble, for example, in S-Class, CL-Class, known as W221 and W216, respectively. You can replace the park brake faculty or remove your defective module and send it for rectify to any of these companies that offer this haunt service on eBay .

ABS Module 

corrosion or loss connection at the ABS unit ( in the locomotive bay ) can besides trigger this problem .
If the ABS module is faulty, you will besides notice ABS fall, traction control, and brake abstemious ( staying on ), along with the parking bracken malfunction. While not a very common problem, this issue needs to be diagnosed with a Mercedes-Benz scanner .

Faulty Parking Brake Switch 

Parking brake switches may stick and not release amply. The parking bracken switch is located under the headlight switch on the dashboard.

Pay care to the throw side. It should pull out when released .
If the substitution stays pressed, it can trigger an electronic parking bracken admonitory. Make certain that every time you release the parking brake button, it does n’t stay pressed .

Weak Battery

Bad battery park brake inoperative
A decrepit chief battery can besides cause the parking brake inoperative on a Mercedes-Benz. Most car parts stores can test your car barrage free of appoint, or you can perform a battery trial yourself using the 12 Volt Battery Test Tool .

Less Likely Problems

corrosion electronic parking brake
other possible issues that can trigger Parking Brake See Owner ‘s Manual .

  • Low main battery voltage.
  • Faulty SAM or Central Gateway Module. 
  • Damaged wire harness.  
  • Software issue – Ask the dealer to perform an update. 
  • A loose, broken, or corroded connector at the parking brake actuator.
  • The brake light switch is faulty.
  • ABS wheel speed sensor defective or dirty.
  • Faulty parking brake switch. 
  • Brake cables need adjustment if they are not pulling evenly. 


One promptly test you can perform is to press the Parking clitoris on the dashboard and have a friend heed to the rear wheels. You should hear the electric motive hire. Check both rear wheels. If you do not hear the noise in one of them, you know which one is faulty .
If you rarely use the parking brakes, the park actuators can get stuck over time. One potential solution is to use a Mercedes-Benz scanner and manually engage and disable the park brakes at least fifteen times repetitively .

Before replacing any parts, it is authoritative to read the mistake codes from the Electronic Parking Brake ( EPB ) module. If the parking bracken malfunction showed on the dashboard, there is a defective code in the EPB module .
Diagnose Mercedes Parking Brake
Go to Parking Module ( EPB ) > Acuations > Activate Parking Brakes .
Use a Mercedes-Benz scanner to read fault codes from the EPB module. The codes stored in the EPB module will guide you in the right management. For exemplar, you will get blame codes such as :

  • The position of component Electric Parking Brake is Implausible
  • B22d52- Electric parking brake malfunction; this component has not been put in position.
  • B23aa07- The left brake has a malfunction, mechanical fault. The right brake caliper is faulty. An open circuit exists.
  • B23aa77-the left brake caliper has a malfunction, and the commandment position cannot be reached.  The left brake caliper is faulty. An open circuit exists.
  • 584F – CAN signal WHeel Speed From Control Unit N47-5 ESP Control Unit is Implausible
  • 5160 – CHeck Mechanical Components For Proper Operation and Installation. 

Continue the trouble-shoot based on the blame codes that are showing as CURRENT or PRESENT. Stored codes can be an indication of an intermittent offspring .
once you read the defect codes with a Mercedes-Benz scanner, you will have a better estimate of what ‘s incorrect with the cable car and the cause of the Parking Brake being Inoperative. See the Owner ‘s Manual Warning. With a thoroughly scanner, you will be able to check the operation of the parking brake motors and the parking brake switch without removing them .

External References

beginning :
Category : Car Brakes