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2000 CLK430 2010 S550 4matic
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532 Posts
Discussion Starter #1
Neighbor has a CLK320 (2000). He has a no lock/unlock situation with both the keyfob and locking button on the dash. The alarm does set/clears with the key. Dealer scanned the codes and got:

B1436-014, B1436-13, B1438, B1712

The B1436-014 is Central locking - Pneumatic demand too high or CL pneumatic system leak. Door or Fuel Door. The others were alarm triggers.

So... is the pump fried or is one of the vac lines loose. No pump noise when locking or unlocking. On my 2000 CLK430 get the pump noise when pressing lock/unlock.
 

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Registered
2000 CLK430 2010 S550 4matic
Joined
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532 Posts
Discussion Starter #3
I've read that the pump failure is pretty common but I want to make sure the part is bad before telling him to purchase one either through a parts discounter or on eBay. We'll have to pull it sometime this week and test it electrically if someone doesn't comeup with a code interpretation.
 
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