Cheap Mercedes-Benz SLK Air Flow Meter

Yes, but only on petrol-engined SLK variants that use a mass air flow (MAF) sensor as part of their engine management system — which covers the majority of petrol SLKs across all three generations (R170 1996–2004, R171 2004–2011, R172 2011–2020). The diesel SLK 220 CDI, introduced in the R172 generation, uses a different air management approach and does not use a conventional MAF sensor in the same way, so confirm with the breaker if you have a diesel variant. If you have a petrol SLK, the air flow meter is a genuine and commonly replaced part.

Almost certainly not — the R170 (1996–2004) and R171 (2004–2011) are entirely separate generations with different engine families and engine management systems, so the MAF sensors are not interchangeable. The engine code is the critical detail here: even if two engines share a similar displacement, different codes mean different sensors. Supply your engine code (found on your V5 or via a VIN check) to the breaker so they can match the correct unit.

Yes, engine variant matters significantly — the SLK 200 Kompressor, SLK 280, and SLK 350 all use different engines with different engine codes, and each will have a specifically calibrated MAF sensor. The 200K uses a supercharged four-cylinder, while the 280 and 350 are naturally aspirated V6 units, so the sensors are not the same part. Always quote your exact engine code to the breaker rather than relying on the badge alone.

No — trim level (for example, whether your SLK is a standard, AMG Sport, or Final Edition) has no bearing on which air flow meter you need. Fitment is determined entirely by engine code, not by trim or specification level. Focus on confirming your engine code and fuel type when speaking to the breaker.

The R172 ran from 2011 to 2020 and received a facelift around 2016, but whether the MAF sensor changed at that point depends on whether the engine code changed rather than the facelift itself. In many cases the same engine carried across the facelift without significant air management changes, but ancillary and mounting detail changes mid-production are something you should confirm with the breaker against your exact registration to be sure.

If two Mercedes models genuinely share the same engine code, the MAF sensor can sometimes be the same physical part, and breakers will often cross-reference this way to find stock. However, whether the sensor, wiring connector, and any associated coding requirements match across different models is something to confirm with the breaker against your registration rather than assume. Sharing your engine code gives the breaker the best chance of finding a compatible unit from their wider Mercedes stock.