CL-Class (W215) 2000-2006: CL 500, CL 600

TRUNK CLOSES BUT DOES NOT OPEN

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Old 12-18-2020, 04:29 PM
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2004 CL500; 2010 S 63 AMG; 2001 CLK430 Cab.
TRUNK CLOSES BUT DOES NOT OPEN

HAPPY HOLIDAYS ALL:

Say, my trunk stopped opening via the indoor release [the red light no longer comes on] or the key. However, after manually opening it it will close by pushing the close button in the trunk lid[ you can close or close and lock]

I have read the threads about broken wiring and I looked and do not see that. I have read a thread about rebuilding or replacing a part in the trunk related to the vacuum air actuating system of the trunk. But I am perplexed on it closing via the trunk button in the trunk but the door button or key will not open or close?

If you could comment and direct me to the thread if its been covered I would really appreciate it.. I cross the border frequently and I'm tired of getting out the car to open my trunk for inspection lol
Old 12-22-2020, 03:57 AM
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Here the doc and picture to refill you hydrolic truck lid pump
and PDF

Then, there is a calibration procedure in Xentry where it asks you to fully open the trunk, then close ect
not sure this can be done without

but for now, check the pump first





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Old 12-22-2020, 04:02 AM
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many threads in search
like this one
https://mbworld.org/forums/cl-class-...-not-rise.html
Old 01-03-2021, 06:27 PM
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2004 CL500; 2010 S 63 AMG; 2001 CLK430 Cab.
Originally Posted by BenzNinja
many threads in search
like this one
https://mbworld.org/forums/cl-class-...-not-rise.html
Happy New Year all -

Benzninja, Thanks for the info. I changed the fluid in the trunk pump reservoir. Had some black residue on the bottom of the cup which I wiped out. It did not appear low. No change. I can hear a latch/unlatch or some actuation when I used the electric key trunk open button but the door trunk release red light is still off and nether the door trunk release or key trunk release opens the trunk.
Old 01-03-2021, 06:58 PM
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Originally Posted by whjresq
Happy New Year all -

Benzninja, Thanks for the info. I changed the fluid in the trunk pump reservoir. Had some black residue on the bottom of the cup which I wiped out. It did not appear low. No change. I can hear a latch/unlatch or some actuation when I used the electric key trunk open button but the door trunk release red light is still off and nether the door trunk release or key trunk release opens the trunk.
try disconnecting your battery for 20 min
then try again starting by the driver indoor button

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