Mercedes Benz repair: Mercedes Benz door locks, chassis number, system chassis


Question
Hi Mr. Hunter; Our 1994 MB S 500 no longer is capable of remote or central door locking. Neither will the trunk lid pul down. The lumbar adjustment on the seats failed as well. I can't help but believe that a common problem exists. I've checked fuses and air line connections under the rear seat. What do you think is wrong? Thanks for your help. Joel

Answer
Answer:
The central locking may be a failed vacuum supply pump.

The lombar support may be a wire, switch, bag or pump fault, all of which are in and/or under the seat, and I can find no parts for this.
Simply call or e-mail Phil for assistance.
Toll Free 1-888-333-4642 or philip@mercedesshop.com



Vehicle: 1994 Mercedes Benz S 500
Part: Vacuum Supply Pump
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   Vacuum Supply Pump
for Central Lock System
For central locking. Located beneath rear seat. Up to chassis number A-216190, requires (2) 210 800 02 22 vacuum coupling, (2) 210 800 04 22 vacuum coupling, (1) 000 987 11 45 plug and (1) 007 997 61 82 vacuum hose. For vehicles with electric headrests, (2) 124 805 02 44 vacuum plug is required. For vehicles without reversing aid, (1) 210 800 00 53 cap is required.      
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    Vacuum Supply Pump
for Power Closing System
For power closing system. Located in left of trunk.    Chassis: -A 151658
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   Vacuum Supply Pump
Power Closing System
Luggage compartment : Left. Also requires (2) 202 800 04 53 vacuum plug and (2) 000 987 11 45 vacuum plug.    Chassis: A-151659-
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    Vacuum Supply Pump
for Power Closing System
This is not the pump for the central locking system.    Chassis: -A 151658

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