Second Hand Mercedes-Benz CLK ECU
Need a used Mercedes-Benz CLK ecu? Request a free quote from UK vehicle dismantlers and compare offers direct.
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Choosing the right used Mercedes-Benz CLK ecu
Used ecus vary between vehicles - and whether you call it used, second hand or a replacement, matching the right one matters. These are the details breakers need to match the right part to your car - our request form asks them so you only hear from suppliers with the correct part:
- State whether it's petrol or diesel
- State the engine code if known
Other used Mercedes-Benz CLK parts
- Used Mercedes-Benz CLK Gearbox
- Used Mercedes-Benz CLK Radiator
- Used Mercedes-Benz CLK Differential
- Used Mercedes-Benz CLK Fuel Injection Pump
- Used Mercedes-Benz CLK Headlight
- Used Mercedes-Benz CLK Rear View Mirror
- Used Mercedes-Benz CLK Steering Column
- Used Mercedes-Benz CLK Boot Lid
- Used Mercedes-Benz CLK Fog Light
- Used Mercedes-Benz CLK Subframe
- Used Mercedes-Benz CLK Exhaust System
- Used Mercedes-Benz CLK Brake Master Cylinder
Used ecu for other Mercedes-Benz models
Fitment questions
Does a Mercedes CLK ECU actually exist, or is it shared with another model?
Every CLK was fitted with its own engine control unit (ECU), so yes, the part genuinely exists on this vehicle. Because the CLK shared its platforms and engines with the C-Class and E-Class of the same era, ECUs from those models can sometimes cross over, but fitment depends entirely on the engine code rather than the badge. Always lead with your engine code when asking a breaker for a quote.
Will a CLK ECU from a W208 (1997–2002) fit my W209 (2002–2009)?
The W208 and W209 are distinct generations with different architecture, so an ECU from the first generation (W208, 1997–2002) will not be a straightforward swap into the second generation (W209, 2002–2009). Even where engine families overlap, the control software and pin configurations differ between generations. Confirm exact compatibility with the breaker using both your registration and your engine code before purchasing.
Does it matter whether my CLK is a coupe or a convertible when buying a replacement ECU?
No — body style has no bearing on ECU fitment for the CLK. The ECU follows the engine code, fuel type, and gearbox type, not whether the car has a fixed or folding roof. Give the breaker your engine code (found on your V5 or via a VIN check) and they can match the correct unit regardless of body style.
I have a W209 CLK — does it matter if I buy from a pre-facelift (2002–2005) or post-facelift (2005–2009) car?
The W209 received a facelift in 2005, and while many mechanical components carry over, whether an ECU crosses that boundary cleanly depends on your specific engine code and any mid-production software or ancillary changes. Name the boundary to your breaker — pre-facelift versus post-facelift — and ask them to verify against your registration, as this is not something to assume without checking.
Does the trim level affect which ECU I need — for example, Elegance versus Avantgarde versus AMG?
Trim level alone does not affect ECU fitment; Elegance, Avantgarde, and AMG Sport trim badges are cosmetic and equipment distinctions rather than mechanical ones. What does matter is whether an AMG variant carries a different engine code from a standard variant, because that changes the ECU entirely — so always check the engine code on your V5 rather than relying on the trim name. Once you have the engine code, a breaker can match the right unit accurately.
Will a diesel CLK ECU fit my petrol CLK, or vice versa?
No — diesel and petrol ECUs are completely incompatible and must not be swapped across fuel types. The CLK was offered in both petrol and diesel variants within the W209 generation, but the engine management systems are entirely different between them. Always confirm your fuel type and engine code with the breaker, and be aware that ECU coding and immobiliser pairing to your specific vehicle is something to discuss directly with the breaker or a specialist before fitting any replacement unit.