Second Hand Mercedes-Benz S-Class Seat Belt Pretensioner
Compare prices on a used Mercedes-Benz S-Class seat belt pretensioner from UK breakers. Free part request, no obligation.
Enter your registration or select your vehicle
Find the right part faster and get quotes direct from UK breakers - free, and no obligation.
Choosing the right used Mercedes-Benz S-Class seat belt pretensioner
Used seat belt pretensioners vary between vehicles - and whether you call it used, second hand or a replacement, matching the right one matters. These are the details breakers need to match the right part to your car - our request form asks them so you only hear from suppliers with the correct part:
- State whether it's front or rear, left or right
Other used Mercedes-Benz S-Class parts
- Used Mercedes-Benz S-Class Curtain Airbag
- Used Mercedes-Benz S-Class Seat
- Used Mercedes-Benz S-Class Instrument Cluster
- Used Mercedes-Benz S-Class Sun Visor
- Used Mercedes-Benz S-Class Timing Chain
- Used Mercedes-Benz S-Class Transfer Box
- Used Mercedes-Benz S-Class Heater Matrix
- Used Mercedes-Benz S-Class Rear Tailgate
- Used Mercedes-Benz S-Class Centre Console
- Used Mercedes-Benz S-Class Parking Sensor
- Used Mercedes-Benz S-Class Seat Belt
- Used Mercedes-Benz S-Class Inlet Manifold
Used seat belt pretensioner for other Mercedes-Benz models
Fitment questions
Do all Mercedes-Benz S-Class models have seat belt pretensioners?
Yes, seat belt pretensioners are fitted to all variants of the Mercedes-Benz S-Class as standard safety equipment — this is not dependent on engine choice, drivetrain, or trim level. Every generation of the S-Class has included pretensioners as part of its passive safety system. Because they are safety-critical components, always have a used pretensioner inspected and fitted by a qualified technician.
Will a seat belt pretensioner from a W220 S-Class (1998–2005) fit a W221 S-Class (2005–2013)?
No — the W220 (1998–2005) and W221 (2005–2013) are entirely different generations with different seat and belt anchorage designs, so the pretensioners are not interchangeable across that boundary. Always source a pretensioner from the same generation as your car. Confirm the exact part reference with your breaker against your registration to be sure.
Does a seat belt pretensioner from a pre-facelift W222 fit a post-facelift W222 S-Class?
The W222 runs from 2013 to 2020, with a facelift introduced in 2017, and it is not certain that pretensioners are identical across that boundary — internal components and connector configurations can change at a facelift. Name the generation to your breaker but also ask them to confirm compatibility with your specific registration before purchasing. Because pretensioners are single-use safety items, getting the right match is especially important.
Does the trim level matter — for example, will a pretensioner from an S-Class AMG Line fit a standard SE or Sport?
Trim level can matter for seat belt pretensioners on the S-Class, because higher-spec or AMG trims sometimes use different seat assemblies with different belt and pretensioner configurations. Confirm with your breaker that the donor car's trim and seat type match yours, as a mismatched pretensioner from a different seat setup may not install or function correctly. Your breaker can check this against both registrations.
Does it matter whether the pretensioner is from the nearside or offside?
Yes, seat belt pretensioners are side-specific — a nearside (NS, passenger side) pretensioner will not correctly replace an offside (OS, driver side) unit, and vice versa. Make sure you tell your breaker clearly which side you need when requesting a quote. Fitting the wrong side is a safety risk and the part will not locate properly in the seat or pillar.
Is a seat belt pretensioner something I can fit myself on my S-Class?
Seat belt pretensioners are safety-critical, single-use pyrotechnic devices — once deployed they cannot be reused, and incorrect installation can prevent them from working in a collision or cause accidental firing. We strongly recommend having a used pretensioner fitted by a qualified mechanic or Mercedes-Benz specialist who can also check the SRS system for fault codes. Attempting a DIY fit on this type of component is not advised.