Skip the auto shop - Our mechanics make house calls

Q: Can my seat belt pretensioner be repaired, or does it need to be replaced?

asked by on

i have had a rear end shunt can the seat belt pretentinor on a mercedes e350 coupe be repaired or does it need replacing? The seatbelt retractor pretensioner circuit open fault code on a ethos 9c3a 1st row driver retractor pretensioner circuit open , can this be repaired or is it a complete new belt from Mercedes at £520?

My car has 20000 miles.
My car has an automatic transmission.

A: Most vehicle manufacturers are very particu...

Most vehicle manufacturers are very particular about most of their components, but when it comes to supplemental restraint systems (SRSs), such as air bags, pretensioners, and so on, they are most particular. While it has been some time since I’ve worked for Mercedes, they were most particular about SRS components. Any damage to the SRS wiring that was more than 100mm from a connector required replacing the entire SRS harness for the vehicle. Any SRS components that are open, shorted, or faulty in any manner required replacement. No repairs were allowed or recommended. It seems that your only choice is buying a new belt mechanism.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Seat belt sensors malfunction when car sits in heat

Hello. This is caused by the female part of the seat belt failing. The sensor in the receiver fails internally and will usually be susceptible to changes in temperature when it fails. It will need to be tested and replaced...

Q: How much is a rear rim for a Mercedes E350, 2007?

Unfortunately, yourmechanic.com would not be able to assist you with replacement wheels or provide information as to what the cost would be. Contact your local Mercedes dealer parts department for prices. To save some money, you can try searching online...

Q: My new Audi Q5 mirrors dangerously obstruct the drivers view. What are the chances Santa Monica Audi will take this car back?

Hi there. I have heard that there are some people with issues regarding this and there is talk of a law suit. At this time no Audi dealer will take the vehicle back simply because of the mirrors obstructing view....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.