SL/R129 Whine from rear can’t find fix

May 1, 2021 | 04:38 PM

slradster

Thread Starter

Newbie

Joined: May 2021

Posts: 1

Likes: 0

2000 Mercedes SL 500

Whine from rear can’t find fix

I was looking for an answer on the forum but I have a 2000 SL 500, and there is a loud whine that is constant when the car is running. The sound is loudest in the rear, and I’m not sure what it could be, since my SL isn’t equipped with air suspension or anything like that. I attached a short vid with the noise.

note: we recently replaced the fuel pump (was not an oem part)

Attached Files

E47092DD-A5C2-43A8-8B8A-02C5B5FD427B.MOV (6.59 MB, 49 views)

Last edited by slradster; May 1, 2021 at 04:40 PM.

May 2, 2021 | 01:10 PM

FATHERTIME

Senior Member

Joined: Dec 2014

Posts: 326

Likes: 47

From: Yorba Linda CA

94 SL320 98 SL500 99 SL600 07 SL55

Get a mechanics stethoscope at Harbor Freight and crawl under right rear of car and listen to the pump

May 2, 2021 | 07:59 PM

sushipaste

Senior Member

Joined: Mar 2020

Posts: 253

Likes: 46

From: Riverside, CA

1999 SL600

If the noise started after you put a non OE fuel pump on the car, then the problem is obvious...

Which brand did you use, lol.. Should've only used Pierburg