Used Mercedes-Benz SLK Exhaust Manifold

This depends entirely on the engine code, not the model year, because the SLK R171 generation ran from 2004 to 2011 and used several different engines across that period — including the 1.8 supercharged (M271) and the 3.5 V6 (M272), which have completely different manifold designs. A 2004 and a 2008 SLK with the same engine code are much more likely to share a manifold than two cars from the same year with different engines. Check your engine code on the VIN plate and confirm it matches the donor vehicle's code before buying from a breaker.

Almost certainly not — the R170 (1996–2004) and R171 (2004–2011) are different generations with different engine families, so the manifold flanges, mounting points, and overall architecture differ. Even where engine families overlap in name, the specific application and casting will differ between generations. Always confirm the engine code with your breaker and cross-reference both the donor and recipient registrations.

No — trim levels on the SLK, whether a base model, SLK200, SLK250, SLK300, or SLK350, do not change the exhaust manifold specification; what matters is the engine code fitted to your car. Two SLKs at different trim points but sharing the same engine code will use the same manifold. The only thing to be aware of is confirming the engine code matches exactly, as different engine variants within the same trim name can exist across model years.

The R172 generation launched in 2011 and brought new engine variants including turbocharged units replacing the earlier supercharged M271, so manifold designs changed significantly at this boundary. An R171 manifold is very unlikely to be compatible with an R172 even if displacement figures look similar on paper. Confirm the exact engine code on both vehicles with your breaker before purchasing, as crossing this generation boundary is high-risk for fitment.

Yes, fuel type is one of the most important factors — though it is worth noting that the Mercedes-Benz SLK was offered exclusively with petrol engines throughout all generations (R170, R171, and R172), so there are no diesel SLK variants to cross-reference. All SLK exhaust manifolds are therefore petrol engine manifolds, but you still need to match the specific engine code precisely, as the range included supercharged, turbocharged, and naturally aspirated variants with different manifold designs.

Yes, it can be — engine code is the reliable identifier for manifold fitment, not just the year, so a manifold without a confirmed engine code match is a significant fitment risk. The SLK used several different engines across its generations and within each generation, and a visually similar manifold from the wrong engine variant may not bolt up correctly or could cause running problems. Ask the breaker to confirm the engine code from the donor vehicle and cross-check it against the code shown on your own VIN plate before committing to a purchase.