Cheap Mercedes-Benz Vito Brake Servo

No – the W638 (1996–2003) and W639 (2003–2014) are entirely different generations with different bulkhead layouts and brake system designs, so the servo is not a straight swap between them. The W447 (2014–present) is a further generation again and follows the same rule. Always source a servo from the same generation as your van, and confirm the exact part reference with the breaker against your registration.

Both years sit within the W639 generation (2003–2014), which is a good starting point for compatibility. However, Mercedes did make mid-generation running gear revisions on the W639, so whether a 2007 servo crosses to a 2012 vehicle without issue is something you should confirm with the breaker against your registration rather than assume.

Yes, it can – larger or higher-output engines are often paired with uprated brake systems, and the servo spec can differ between, say, a 109 CDI and a 122 CDI or 150 CDI variant within the same generation. Always tell the breaker your engine size and power output as well as your generation when sourcing a used servo.

It can do – heavier-rated Vito variants (for example a 3.2-tonne GVW long-wheelbase model versus a lighter 2.8-tonne version) may be fitted with a different servo to cope with the additional load. Check the weight plate in your van's door aperture for the exact GVW and pass that information to the breaker, rather than relying on the model name alone.

Trim level – whether your van is a base panel van, a Traveliner, or a Sport – does not determine which brake servo is fitted; that is governed by the generation, engine, and GVW rating instead. The breaker may pull a servo from a van with a different trim to yours and it will be the correct part provided the other specifications match, so do not reject a servo simply because it came from a differently trimmed Vito.

The W447 is well represented in UK breakers' yards and used servos do come up, but the W447 spans a long production run with several engine and payload variants so there is not one universal servo for the whole range. Give the breaker your exact registration or VIN so they can cross-reference the correct part number for your specific variant.