Mercedes-Benz CLK Body Control Module Replacement Parts
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What to check when buying a used Mercedes-Benz CLK body control module
A used body control module that fits one vehicle won't always fit another - even within the same model range. These questions help breakers match stock to your exact vehicle before they quote:
- State your VIN or engine code if known
Other used Mercedes-Benz CLK parts
- Used Mercedes-Benz CLK Fuse Box
- Used Mercedes-Benz CLK Central Locking Motor
- Used Mercedes-Benz CLK Aerial
- Used Mercedes-Benz CLK Alloy Wheels
- Used Mercedes-Benz CLK Radio
- Used Mercedes-Benz CLK Dashboard
- Used Mercedes-Benz CLK Door
- Used Mercedes-Benz CLK Sump
- Used Mercedes-Benz CLK Drive Shaft
- Used Mercedes-Benz CLK Steering Rack
- Used Mercedes-Benz CLK Window Winder Motor
- Used Mercedes-Benz CLK Glow Plugs
Used body control module for other Mercedes-Benz models
Fitment questions
Does the Mercedes-Benz CLK actually have a Body Control Module?
Yes, the CLK does have a Body Control Module (BCM), sometimes referred to in Mercedes documentation as the Signal Acquisition and Actuation Module (SAM) — there are typically both a front SAM and a rear SAM unit on these cars, which together handle the functions a BCM covers on other vehicles. When searching for a used unit, make sure you specify front or rear SAM to your breaker, as they are separate parts with different locations and functions. Most breakers who know Mercedes will be familiar with SAM units rather than the term BCM.
Will a Body Control Module (SAM unit) from a W208 CLK fit my W209 CLK?
No — the W208 (1997–2002) and W209 (2002–2009) are completely different generations of the CLK with different electrical architectures, so their SAM units are not interchangeable. Always source a unit from the correct generation for your car, and confirm the part number with your breaker against your registration. Mixing generations on ECU or control module parts is one of the most common causes of incompatibility.
Does a facelift W209 CLK SAM unit fit a pre-facelift W209?
The W209 received a facelift around 2005, and while the underlying platform is shared, there can be differences in software and wiring integration between pre-facelift and post-facelift vehicles that affect whether a SAM unit will operate correctly. This is one of those cases where you should not assume it will swap straight across — confirm the exact part number against your registration with the breaker before buying. A reputable breaker will be able to cross-reference the part number to check compatibility.
Does the engine variant affect which SAM unit I need — for example, does a CLK 320 unit fit a CLK 500?
Engine variant can influence which SAM or BCM unit is fitted, particularly where features like engine management integration, AMG-spec wiring, or optional equipment differ between variants, so it is not safe to assume all engine variants share the same unit. That said, the key matching criteria are the part number and software version rather than engine size alone. Confirm the unit's part number against your specific registration with the breaker to be sure.
Does trim level affect which Body Control Module I need on the CLK — for example, Elegance versus Avantgarde?
Trim level itself does not change the fundamental SAM unit in the way that generation or body electronics specification does, but differences in fitted options between trim levels — such as whether the car has a certain lighting spec, folding mirrors, or other convenience features — can mean units are configured differently. The safest approach is to match by part number rather than trim name alone, and ask your breaker to verify against your registration. Do not assume that because two cars are both Elegance or both Avantgarde spec their SAM units are identical.
Can I just plug in a used SAM unit from another CLK, or does it need coding?
Used SAM units from Mercedes vehicles typically require coding or programming to the receiving vehicle before they will work fully, and in some cases the unit must be paired to the car's VIN. This is something your breaker may be able to advise on, but you should also factor in the cost of having the unit coded by a Mercedes specialist or auto electrician after fitting. Do not assume a direct plug-and-play swap — confirm the coding requirements before purchasing.