Battery check Mercedes-Benz CLK 2002 - 2005 | Haynes Manuals
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Locate the battery
First, release the pipework from the battery cover
Open the battery cover/pollen filter housing - undo the three retaining clips
Place pollen filter/cover to one side. Now is a good time to change the pollen filter
Now check the Negative (-) terminal clamp is tight
Check the Positive (+) terminal clamp is tight. CAUTION If using a spanner to tighten terminal, be careful not to short it on the bodywork
Check battery is generally secure, if loose, tighten the battery retainer
To tighten, a 13mm socket is needed. Not too tight because you may damage the battery casing
Replace the battery cover/pollen filter