I have a 1993 500SEL and from last week my power-assist door close on the driver rear door fail and then the driver door and now even the trunk!!! What is happening? I heard that I might be up for big money for the pump! I hope not.

Any help out there?

Try removing # 9 fuse in trunk for a few seconds, after reinstalling check operation of closing assist. If it works for a few times then pump is on the way out.

Unfortunately the most likely cause is the pump. It however is located in the left trunk area behind the Bose Amp unit if you need to get to it.
I don't know if anyone know of re-man units, the new ones are expensive.


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Mercedes-Benz Master Guild - 2 years
Shop Foreman - 20 + years - dealer.
Part owner - MBZ Transmission remanufacture
2000 SL500
1995 E320
1989 300SE

Thank you so much. By removing and reinstalling the fuse #9 fixed the problem. I hope it will last for a while.

The temperture dial on the centre console is out. Any tips in fixing it? I have no idea how to take those controls out!

Many thanks in advance.

Regards,
Michael Tse

MBZ.Ian
Yes, there are aftermarket repair facilities that do the door closing assist units. They cost about half of what MB charges and with the same warranty, one year. Take your choice. Last I ckd. with MB it was about $800US.

Tobias MB
300SE, 300CE, C280Sport, 190/5.0

As there are 2 different brands of A/C controls & different bulb replacements techniques I wouldn't make attempt w/o removing the assembly.

Are there books I can buy to show how to remove the assembly?

Closing Assist pump is about a $950 job at the dealer...you will notice the newer pump has been updated and makes the doors/truck close faster. As for the climate control unit its a sealed part and has to be replaced. Cost of the part is $1400.00...luckily I had both replaced under warranty...good luck

[This message has been edited by turnne1 (edited 09-12-2000).]

The a/c pushbutton does have replacable bulbs!! Again the method for replacement is different between the 2 brands!

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MERCEDES BENZ MASTER GUILD TECHNICIAN (6 TIMES)
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 16V ITS SCCA racecar

Uuuhm, it is definitely not cheap for a coupleof light builb. Actually, the light blubs problem is not with the push button, it was actuially the dial and temperature display. The temperature display is showing the temperature but the light behind it is not wotking. The temperature dial is the same. It is functioning but just the light.

Many thanks anyway.

Yes! LED bulbs are replaceable it's not a easy job. hope this help

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MB STARS Master Guild Technician,12 years MB tech
6 years independent shop owner

Thanks for the advise. Do they have a manual which I can buy to show me how to disassemble it?