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M271 brake vacuum pump hose removal

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Old Feb 3, 2025 | 09:05 AM
  #1  
Chen Cheng Yi's Avatar
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W212 E250 CGI, 2011
M271 brake vacuum pump hose removal

Hi everyone,
How can the brake vacuum pump hose fitting be removed ?
I used a screwdirver to pry tabs outward, but still can't pull the hose fitting out.
Thank you.




Last edited by Chen Cheng Yi; Feb 3, 2025 at 09:54 AM.
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Old Feb 4, 2025 | 04:42 AM
  #2  
S-Prihadi's Avatar
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From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Press inward that small latches, there are 2 not 1, do not pry like that. Use your finger...squeeze both latches.
When you press the small latch, the inner locking "teeth" 2 of them will open up and you then pull out the connector.
If never removed a long time, it usually is kinda stuck at its o-ring inside the connector.

From my M276.820 , same overall design to your M271



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Spin the connector a bit say -20 +20 degrees left right to loosen the o-ring grip, while you depress the latches so that both "teeth" will open up.
While spinning left/right the connector, pull backward the connector away from that bulkhead/firewall located vacuum pipe.


My 2 latches type is kinda flushed, not as obvious as yours.


.


Last edited by S-Prihadi; Feb 4, 2025 at 04:46 AM. Reason: add info
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