I have just investigated a rattle underhood of my '93 300D and noticed that the tensioner roller is out of alignment with the serpentine belt. I suspect this the the source of the noise. Is it just the roller that would need to be replaced normally, or is it common to have to replace the entire tensioning assembly?

Thanks in advance.

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'01 CLK430 (hers)
'99 528iT (turd)
'87 Porsche 928 (just for fun)

bump

__________________
'01 CLK430 (hers)
'99 528iT (turd)
'87 Porsche 928 (just for fun)

Only way to tell is to take the tensioner off. If it doesn't return to the normal untensioned position, it's bad and must be replaced.

The roller comes with the tensioner, I believe, so you might as well replace the tensioner to avoid hassles (such as being unable to tension the belt with the old tensioner).

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

PSfred,

Thanks. I thought I remembered getting just the roller for my '87, but now I can't even rember where I got that. Does anybody out there have a source for these (aside from the stealership)?

__________________
'01 CLK430 (hers)
'99 528iT (turd)
'87 Porsche 928 (just for fun)

Click on the Fastlane button at the top of the page. If you can't find on the web interface, then call Phil at Fastlane. He has multiple sources for parts and can get stuff not listed here.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

Thanks! Phil was very helpful!

__________________
'01 CLK430 (hers)
'99 528iT (turd)
'87 Porsche 928 (just for fun)