Tl* the contact owns a 2004 mercedes-benz sl500. When the vehicle was started, the contact heard an abnormal knocking sound underneath the vehicle near the fuel tank. Additionally, there was a constant fuel odor inside the vehicle. The vehicle was taken to mercedes-benz of virginia beach (located at 4949 virginia beach blvd, virginia beach, va 23462, (757) 499-3771) where it was diagnosed that one of the baffles in the fuel tank fractured, separated, and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified. The approximate failure mileage was 144,000. The VIN was not available.
2004 Mercedes Benz SL500: engine knocking or ticking
6 of the 45 complaints about the 2004 Mercedes Benz SL500 describe engine knocking or ticking.
- owner complaints
- 6
- of this car's complaints
- 13%
- typical mileage
- 118,200
- recalls
- 0
Is there a fix? 3 service bulletins cover this area of the car. See below
Engine knocking or ticking by model year
- 20046
- 20031
What owners say
Tl* the contact owns a 2004 mercedes benz sl500. The contact stated that while driving at various speeds, a knocking noise emitted from the rear driver's side. The dealer diagnosed that fuel tank needed to be replaced. The vehicle had not been repaired. The manufacturer was notified of the failure. The VIN was unavailable. The approximate failure mileage was 78,000.
The gas tank baffle had broken and it is knocking inside the tank. I am concerned that it will break and cause a fire.
Baffle in my fuel tank on my 2004 mercedes sl 500 has broken. Causes a loud knocking sound. Entire fuel tank has to be replaced. Researching many blogs and forums found many of sl owners has same experienced. I believe this should be handled under a recall from the manufacturer.
2004 mercedes-benz sl500, loud knocking noise from the rear.fuel tank might need to be replaced... Seems to be a common problem with these cars.
Baffle in my fuel tank on my 2004 mercedes sl 500 has broken. Causes a loud knocking sound and the only remedy is to spend $3000 to have the entire fuel tank replaced. This is happening to hundreds of mercedes benz sl owners. I believe this should be handled under a recall from the manufacturer.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2004 Mercedes Benz SL500 knocking
Is engine knocking or ticking a common problem on the 2004 Mercedes Benz SL500?
6 of 45 owner complaints about the 2004 Mercedes Benz SL500 (13%) mention engine knocking or ticking. The model year with the most reports is 2004.
Is there a recall or service bulletin for this on the 2004 Mercedes Benz SL500?
There are 0 recalls and 3 service bulletins for the same area of the car. Check them below with your VIN.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2004 Mercedes Benz SL500?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history