Second Hand Mercedes-Benz A-Class Throttle Body

Most modern A-Class engines use an electronic throttle body (sometimes called an ETV or drive-by-wire unit), so yes, the part does exist across the range — it is simply controlled electronically rather than by a cable. Petrol engines across the W168 (1997–2004), W169 (2004–2012), W176 (2012–2018), and W177 (2018–present) generations all use a throttle body, and even most modern diesel variants have one for air management and emissions purposes. So regardless of your generation, a throttle body is a genuine part you can source from a breaker.

Both years fall within the W176 generation (2012–2018), which is a good starting point, but fitment is driven primarily by engine code rather than year — a throttle body for an M270 petrol engine will not suit an OM651 diesel even within the same generation. Pull your engine code from your V5 or a VIN check and give it to the breaker so they can match it precisely. Do not assume year-for-year compatibility without confirming the engine code matches.

Trim and badge level do not directly determine throttle body fitment — the engine code does. The A200, A220, A250, and A45 AMG each use different engine families (for example, the A45 uses the M133 high-output unit), so they will require different throttle bodies, but that difference comes from the engine, not the trim name itself. If two vehicles share the same engine code, trim level is irrelevant to whether the part fits. Tell the breaker your engine code rather than just your badge, and they can confirm the correct unit.

Crossing the W169-to-W176 generation boundary is a significant jump in platform, engine family, and electronic architecture, so direct interchangeability is very unlikely. You should confirm with the breaker against your exact registration and engine code before assuming any cross-generation swap is viable. Sourcing a unit from within the correct W169 generation and matching engine code is always the safer route.

This is an important question and one you must confirm with your mechanic or breaker rather than assume — some Mercedes throttle bodies require adaptation or coding via dealer or aftermarket diagnostic tools after fitting, and in some cases ECU pairing may be a consideration. Whether a specific used unit from a breaker will need coding to your vehicle is something the breaker and your fitting garage are best placed to advise on for your exact engine and model year. Do not assume a straight plug-and-play fit without checking first.

Diesel A-Class engines, such as the OM607 and OM651 units found in the W176 generation, do generally include a throttle body or swirl/intake flap assembly as part of their air management and EGR systems — so the part does exist on diesel variants, though its design and function differs from a petrol unit. You must match the part to your exact diesel engine code, as a petrol throttle body is not interchangeable with a diesel unit. Confirm the correct part with the breaker using your engine code from the V5 or a VIN check.