12th September 2011, 04:25
M5 Expert (>4000)
Josiah is spot on. Your rear main seal is leaking. Typical problem on these cars with 50k + miles. You have to pull the clutch and flywheel off to replace it. You may consider doing a complete overhaul in that area while you are in there. No sense in pulling it all apart and putting old parts back in.
Search for "RMS" or "rear main seal". There are quite a few threads covering this topic. I know member "Terabass" did a very good job of taking pictures and posted a thread of his RMS replacement......
RMS Stage 2 SC Kit, installed by Buckhead Imports, tuned by Tony Lawshee ~ 556rwhp 456lbs trq on 9lbs of boost
2001 Jet Black/Executive Black///M5 ("M CINCO") current mods and accessories:
~ Complete aftermarket stereo system w/Alpine INA-W910/PXA-H701, Rear Camera, Hybrid Audio Technologies L831 speakers
~ UUC V12 clutch kit with segmented kevlar clutch disc
~ Dinan 3.45 rear differential
~ Remote oil thermostat/Setrab oil cooler
~ Fabtech-Performance Heat Exchanger
~ Muffler delete with ///M5 - MCINCO etched "Timmay Tips" LOL
~ (4) Dinan 18x9.5" wheels ~ Stoptech slotted rotors and Centric Posi Quiet Pads
~ BC Racing coil overs (10k/8k) ~ Powerflex thrust arm and inner track control arm bushings ~ Dinan RSB ~ Beastpower sway bar brackets
~ Slimmbones finned rear diffuser, XL fog light covers, trunk spoiler, and front lip spoiler.
Coming soon -Custom CCV system & Buckhead Imports Performance Headers and Decat pipes.
Tim ~ email: t.hallman77 @ yahoo (dot) com