Mercedes-Benz CLC-Class key battery
Every Mercedes-Benz CLC-Class remote key we cover, 2008–2011, takes 2 × CR2025.
CL203 — the facelifted W203 Sports Coupé, relaunched as the CLC
2008–2011- Remote head key2 × CR2025
Takes two cells. Replace both at the same time, stacked the same way as the old ones.
How to change a remote head key battery
- Look for a small screw or a slot along the seam of the plastic head. Undo the screw if there is one.
- Wrap the tip of a small flat screwdriver in tape or a cloth, put it in the slot and twist gently to part the head. Keep it off the circuit board and contacts.
- Note which way up the old cell sits before you lift it out. It varies by key, so don't assume + is up.
- Fit a new 2 × CR2025 the same way up, holding it by the edges. Leave any grease on the contacts.
- Clip the case back together and test the buttons at the car. Most keys work straight away with no reprogramming.
- Keep new and old cells away from children. A swallowed button battery can cause serious injury within two hours.
For locksmiths · CL203 — the facelifted W203 Sports Coupé, relaunched as the CLC
- KeysRemote head key
- Tools confirmed24
- Transponder chipSubscribers
- Programming procedureSubscribers
Questions
Mercedes-Benz CLC-Class key battery questions
CL203 — the facelifted W203 Sports Coupé, relaunched as the CLC (2008–2011): 2 × CR2025 in the remote head key.