Q: Power locks orthopedic seats

asked by on

My 300E was working great until I got the oil changed. Now my power locks and air operated orthopedic seats don't work. The air pump doesn’t come on either. Do you think there is a connection between the oil change and these problems that just arose? I can’t hear the air pump come on when I turn the key as usual. What do you think happened? How can I fix these problems?

Both of these systems are controlled by fuse ’A’ in the electrical center of your 1990 Mercedes-Benz 300E. If this fuse is blown it would prevent both the locking and orthopedic seats from functioning. I doubt it was related to the oil change - this was most likely coincidental. But if replacing the fuse does not fix the issue, then you may have a direct short to ground somewhere so the wiring would need to be traced. If this becomes the case, you may want to enlist the help of a mechanic, such as one from YourMechanic, who can diagnose and restore your power locks and seats.

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
  1. Home
  2. Questions
  3. Power locks orthopedic seats

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

Q: Loud clicking noise under dash sounds electrical. I just replaced cluster and it seems to be coming from somewhere else.

The clicking sound in the dashboard could be the hazard flasher energizing when the lights are not on. Also, there could be a sticking blend door motor that is skipping the gears and causing a loud clicking noise. If you...

Q: Ignition cylinder/switch problems

I can't say for certain without knowing the type of vehicle you have. Many modern vehicles have complex shift interlock systems that incorporate the ignition switch and cylinder. In a situation like this, it would be fair for the shop...

Q: Air conditioning on high caused radio turn off, gas gauge to empty,warning lights on

The most likely cause of this is a battery with a failed cell, alternator, battery cable or the AC compressor itself. If the charging system has a fault, it will not be able to support all of the car's systems,...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.