help me w108 - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 06-22-2010, 02:05 PM Thread Starter
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help me w108

i have a 1968 280se i am getting no fuel to the engine i know the rear pump is bad and fuel filter is probably clogged need to know where to get a new filter and wanted to replace the rear pump with a universal unit with a regulater i need to know what psi i need to regulate the rear pump to or where to get a rebuild kit for the pump in the tank.
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post #2 of 3 (permalink) Old 06-22-2010, 08:53 PM
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Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
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These cars use a low pressure fuel pump. The pump can be disassembled, cleaned and repaired, especially the 'long body' pump. There are also screen(s) in the pump intake and the FI pump. Fuel filters are available and are in a housing under the FI pump on the engine support. You must remember, keep everything clean because if any dirt or lint gets into the FI pump, it will cause problems.

I did a search on 'fuel pump', exact phrase minus the quotes in the Fuel Management forum on The International M-100 Group forums.

M-100 Message Board - Long-body pump rebuild


M-100 Message Board - Fuel system cleaning and rebuild on #495

and Welcome - Mercedes Benz 230SL, 250SL, 280SL Pagoda Group is also a good resource because these cars use the same system for fuel injection.

There is no pump in the tank because it's gravity fed to the electric pump. I hope this helps.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant
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post #3 of 3 (permalink) Old 06-23-2010, 10:04 AM
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If you go new, the pump will be pricey. I'd be careful about buying used, or something out of a junk yard. There have been a number of discussion threads on this forum regarding using a generic pump, or something off a Ford or Chevy (sorry purists...), but I don't recollect whether that was ever put to bed or not.

The fuel pump is pretty cheap. I paid something like $19 at Kragen. Try also Napa Autoparts, or if you want to shop around, do a general google search for Mercedes W108 parts. You'll find a number of companies that support parts for our old beasts.

Additionally, there's a part of this forum labeled "Online Resources." You might find something useful there regarding your fuel system.
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