S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

No central locking W126

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Old Oct 13, 2010 | 01:03 PM
  #1  
weathersone's Avatar
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W126 300SEL W126 420SEL
No central locking W126

Can anyone assist with this?
I am told there is a vacuum pump somewhere, can someone say where?
What does it look like?
Is there a simple way to test it?

The car is getting old, a bit like me

Any help appreciated.................mw
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Old Oct 17, 2010 | 08:01 PM
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morris374's Avatar
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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS
u can buy a new central pump on ebay but replacing it is not all that ez probably gonna need a professional to install
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Old Oct 18, 2010 | 05:36 PM
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Jeremy.nl's Avatar
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1986 300SE, 1984 Porsche 944, 2004 Renault Scenic
As a follow-on question: is it normal that the other door locks open/close about 1 second after the lead door? Or does that delay indicate that there's a problem developing somewhere?
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Old Oct 20, 2010 | 02:54 PM
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1991 420SEL & 300E, 2003 BMW X5, 2001 740iL all on DUBS
pretty sure thats common cause both my 300 and 420 do that. u have to remember its a pump opening the locks not electronic
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Old Oct 20, 2010 | 05:06 PM
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1986 300SE, 1984 Porsche 944, 2004 Renault Scenic
Thanks,
That's one less issue to worry about then
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