Used Mercedes-Benz SLK ABS Pump

Yes, all generations of the SLK were fitted with ABS as standard, so every SLK will have an ABS pump and modulator unit. The SLK ran across three main generations: the R170 (1996–2004), the R171 (2004–2011), and the R172 (2011–2016). Because each generation uses a different braking system architecture, you need to match the pump to the correct generation rather than just the model name.

These two cars fall either side of the R170-to-R171 generation change in 2004, so the ABS pump from a 2003 R170 is very unlikely to be compatible with a 2005 R171. The two generations have different brake system layouts, different control unit interfaces, and different hydraulic block designs. You should source a pump specifically from an R171 (2004–2011) for a 2005 car, and confirm the exact part number with the breaker against your registration.

Yes, engine size can affect ABS pump fitment on the SLK because larger-engined variants — such as the SLK 350 or AMG versions — were often fitted with uprated braking systems compared to entry-level engines like the SLK 200. The ABS pump and modulator are calibrated to work with the specific brake system on that variant, so a pump from a smaller-engined car may not be a straight swap onto a higher-powered one. Always give the breaker your full registration so they can match the pump to your exact engine and brake specification.

It can matter, because the SLK 350 was fitted with larger brakes than the SLK 200 Kompressor, and the ABS pump is matched to the hydraulic system of those specific brakes. Trim names like Kompressor do not affect fitment, but the engine size and the brake hardware that came with it do. Source a pump from the same engine variant where possible, and confirm compatibility with the breaker using your registration number.

The R171 generation received a facelift during its production run, but whether any mid-generation changes were made to the braking or ABS system that would affect pump compatibility is something you should confirm with the breaker against your registration rather than assume. In many cases the ABS pump carries over across a facelift, but brake system updates can sometimes occur without a full model change. Give the breaker your VIN or registration to check the specific part number fitted to your car.

No — colour and interior trim have no bearing whatsoever on which ABS pump fits your SLK. What matters is the generation (R170, R171, or R172), the engine size, and the specific brake system fitted to your variant. Focus your search on matching those details, and confirm with the breaker using your registration.