I have been using the tricks of removing fuse 9 and replace it for a few months now. At first, the trick works for 1 few days, and then I need to reset every day.

I think the pump is going off soon. Where can I buy the pump at the best price. Also, it is an item I can fix myself?

Regards,
Michael Tse

YOU CAN BUY THE PART FROM US!!!!! THIS IS HOW WE PAY FOR THIS SITE!!!! HELP SUPPORT US!!!!

You can't really service this item yourself.

You can replace it yourself if you are careful. The pump is accessed from the trunk. It is against the tank on the driver's side.

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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS

Bosch is having a WORLD-WIDE recall on this part, ACCEPT only a OE part in MB box or you might get a defective new part!!! Bosch says MOISTURE in shipping has caused this problem!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

How can we take part in the Bosch Recall on the pump. Is it a replacement, a warranty job???

thanks

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Chris Doko
93 500SEL
-Clear Corners
-Apine CD changer

I too have a bad pump and was just about to order a new one from mercedesshop.com. Does anyone know if the recall applies to my old one or not?
Thanks in advance. Joel
92-500SEL

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Joel P. Davis
1992 500SEL

Bosch HAD recall on NEW pumps on the shelf!! That was 4 months ago. PUMPS that you purchase now should be OK! Not a recall on pumps already installed.

Check the system must be perfectly air tight otherwise the pump would be burnt again. (inc the back support air bags)

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MB STARS Master Guild Technician,17 years MB tech
14 years independent shop owner

Any idea which port on the pump is the back support.
I show
SK VL VR HD HL HR

Thanks in advance.
Joel

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Joel P. Davis
1992 500SEL

I sorry the seat back air bag is control by PSE pump is locate under rear seat grey is the color line.
SK is air in & out
VL is for left front door
VR is for right front door
HD is for trunk
HL is for left rear door
HR is for right rear door

__________________
MB STARS Master Guild Technician,17 years MB tech
14 years independent shop owner