Which is why I am very hesitant to bring the car in and perhaps have one of their techs work on the subframe. Because. 1. BMW techs aren't trained to be welders. 2. I doubt BMW NA will pay them to go through a welding course. Even if they do, they have no previous experiences. 3. I just don't trust dealers. The E46 M3 should have a smooth, consistent, and engaging power band all the way up to its 8,500 RPM redline. It shouldn’t stutter or feel like it’s lacking on low RPM power. Feel for any driveline vibrations that could be a bent/imbalanced wheel, CSB, Giubo, or drivetrain mount. Test the brakes. $8-$10k. Depends on what you do though. When you drop the rear subframe, great time to do bushings, etc. when you pull the oil pan and drop the front subframe, motor moo it’s, power steering lines, etc. If you take advantage that most of the labor is done already, you can spend more but get bang for the buck since you already paid for the labor. Step 2: Strip the subframe. Using an 18mm wrench and socket, remove the lone bolt holding the knuckle assembly to the upper control arm on each side. Then, flip the subframe over and use an 18mm socket to remove the two bolts that hold in each of the camber arms. A dealership will conduct a free inspection to see if you do have subframe tears and from what ive read usually cost between 3500-5000 dollars to fix and is usually covered by bmw na. Not the case if you live in Canada, a great job to do while doing this is to reinforce your subframe a kit cost about 170 dollars but needs to be proffesionally . BMW E46 Rear Subframe Failures. As advanced and solid as the E46 feels it has a major weakness in the rear suspension: the subframe rips away from the chassis. The subframe is bolted to the chassis at four points under the trunk floor. The attachment points where it gets bolted are spot welded to the sheet metal of the floor. 3987 posts · Joined 2005. #2 · Sep 20, 2011. I know the rebuild on my starter 4 years ago was $160. Looked brand new when I got it back from my guy. Paid about $200 or so to have it installed though. I heard they have to remove an engine mount and raise the engine a littleor move part of the subframe 3 posts · Joined 2017. #17 · Jan 21, 2018 (Edited) $3000 OTD SMG with new clutch (Genuine BMW) machined wheel, new slave cylinder, main seal, fork, TOB, drive shaft support bearing (unexpected, it was shot) guibo, etc. Done by very knowledgeable indy shop in Los Angeles. Shortly later I had to change smg pump. The E46 M3 should have a smooth, consistent, and engaging power band all the way up to its 8,500 RPM redline. It shouldn’t stutter or feel like it’s lacking on low RPM power. Feel for any driveline vibrations that could be a bent/imbalanced wheel, CSB, Giubo, or drivetrain mount. Test the brakes. Powerflex Urethane Track-Series Rear Subframe Inserts - BMW E46 non-M, E83 X3 A complete 8 piece Aggressive Street/Track Kit to stiffen your rear subframe mounts without doing a full replacement. Price: $173.98

bmw e46 subframe repair cost