I just got an estimate of $720. to replace my old style fuel filter and fuel pump. Is that about right? Seems like I remember someone here saying they got it done for around $500.

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99 E300 133K
98 ML320 99K
87 Saab 900 Turbo Conv 123K

You may want to inquire about a courtesy replacement of the fuel pump. My dealer was willing to replace the fuel pump free of charge because of the design flaw they had with the early pumps (after warranty expired). You never know.

I am not surprised at the cost they quoted you.

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99 ML430

Fuel pump +/- $200
Fuel filter +/- $150 (includes 3 new hoses)

DIY.

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Ric
Ann Arbor
2000 ML320, 172k

If you think education is expensive, try ignorance.

This is why I bought a Eldorado for a daily driver to supplement my old 300D instead of a MB. My dad has a my '00 ML320. Called the local stealership where we bought it new.
Was told that the old design filter lets sediment backflow into pump from filter causing said pump to lock up and vehicle not to start. Service writer said this could happen at any time if gas is of poor quality. They offered to update to new filter and hoses for $300.00. We didn't cause this problem, but we bought it for $40,000. SHAME on Mercedes for allowing this to happen. Reminds me of why the British and Italians don't sell cars in this country anymore.

Unless you have Zip Zero Nada mechanical skills
in an hour or two you can do it yourself for about $275 ish.

Run a coupleword searches here and you will find our "how to" writtings.

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Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles