Question about 1994 Mercedes-Benz S-Class

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On 1994 mercedes benz s320 central locking will not work by key or dash switchhave checked the fuses i can find,when door key is turned pump under rear seat works for about 10 seconds any clues where to look next

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  • svcowen May 08, 2010

    thanks,i did not think it was going to be easy ,oh well of hunting i go

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The locking system is controlled by vacuum . It is really hard to figure out because there are so many things that need to be checked. You can look for broken vacuum hose under the hood. Or under the dash. There are vacuum controls in the doors. Theres a vacuum canister in the trunk. Good luck This may help some. Leave comment.

Posted on May 08, 2010

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