However, unlike the E36, the E46 can’t be broken down into 4-cylinder and 6-cylinder models in the US, as the US only received 6-cylinder E46 models. The three most common E46 models in the US were the 325i, 328i, and 330i, all of which were powered by a 6-cylinder engine. BMW E46 325i. Engine: M54B25
Master Cylinder Hydraulic Pressure Sensor Failure. YAW Sensor Failure. Poor Battery Voltage. To understand how these can cause the trifecta lights you need to understand how the ABS ASC/DSC system works. Understanding the ABS/ASC/DSC System. All E46 models are equipped with an Antilock Braking System (ABS).
The model year is not an indication of subframe issues. Remember-there have been 45,000 E46 M3's produced out of which only a very very small percentage experienced those issues. A lot of these folks did power launches from a dead stop quite frequently which only further weakens the rear subframe.
The E46 was an amazing platform with one of the best engines that BMW ever made as far as driving goes, however its cooling system wasn’t exactly rock solid.
The most common is perhaps the Style 135 MV2 alloy wheel, similar to that used on the later E46. But an optional split-rim style 108, the “Composite Star spoke” wheel was quite often specced
The E46 might be the most popular M3 chassis to mod by enthusiasts, but like all cars, they have their common problems. Rod bearings, VANOS, or SMG pumps are not uncommon and not cheap or easy repairs. But the rear subframe issue is the real Achilles heel of the E46. And it has nothing to do with how modified the car is.
BMW E46 M3; BMW i3; Which SUV to Buy? BMW E39 M5; E90 3 Series; E46 3 Series; BMW Extended Warranty; Racing; Concepts; Rumors; but for places where rust is a problem, this is a no-brainer. A Potential coil problems, post here. Some of us have probably heard of a possible problem with some of the coils in the 3 series. Audi had a bad rash of poorly made coils which required extensive coil pack changes in Audi's and Volkswagons. The 3 series is starting to show some of the same problems, or so this thread would like to see if that is so. Today, we're going to be inspecting my friend's E46 M3 that he just purchased, and focusing on some of the common E46 M3 problems that you should be aware of The car came with two transmission options — a 6-speed manual, and an SMG II gearbox. The latter turned out to be the cause of a serious issue that pulled many cars off the road. More specifically, the M3 E46 SMG pump issue is what caused all the ruckus, and today we’ll try to give you a brief rundown on what this issue means and how

If your M3 has developed a bad gasket, it could allow oil to seep out of the engine. A compression check can help to determine whether or not you have a bad head gasket. If so, a replacement is needed and might be covered by the manufacturer’s warranty. 4. Transmission Shifts Into Neutral While Driving.

The BMW M3 GTR Bent the Rules to Beat Everyone; BMW E46 M3 Buyer's Guide - Common Issues, Problems; BMW E46 M3 Buyer's Guide - Common Issues, Problems; The M3xi Touring Is the Best of Everything Turned out to be my Gear Selection Sensor going bad, I wasn't getting an SMG sensor code though, autologic was giving errors "failed shift" or something similiar. The Gear Position Sensor is located near the back of the transmission above the drive shaft. PN: 23412229792. #2 in the below diagram.

The BMW M3 is one of the most thrilling and one of the finest sports cars you can buy used. Terrific speed. Immense cornering capabilities. Well equipped. Road noise. Engine note a little rough

BMW E46 M3 Buyer's Guide - Common Issues, Problems The M3xi Touring Is the Best of Everything BMW E46 The engine boasts an 8000-rpm redline and pulls hard throughout the rev range.
The E36 M3 is powered by the BMW S50 straight-six engine. It was the first M3 to use a six-cylinder engine, which has since been used in the majority of M3 models (albeit in turbocharged form since 2014). What are some of the most common issues for the E46 chassis? BMW e46 Cooling System Failure/Leaks from Plastic Components: Weak Rear Shock Mount.
53 posts · Joined 2008. #1 · Mar 27, 2008 (Edited) I have a 2001 325i sedan e46, and sometimes when i am at a stop light the RPM idle go up and down between 500 and 1,000 rpm's even if the car is hot is cold. It feels like the car is going to stall, but once i take off it is ok, it does not occur often but enough to be concern.
I also attached a chart by time/mileage, and indicated those items where the dates are suggestive, but no need to do until they are obviously gone. Inspection I 30k. Inspection II 60k. Oil & filter change 7.5k. Air filter 2yrs/30k. Cabin filter 1yr/15k. Fuel Filter 60k. Fluids. Flush Brakes 2yrs/30k . 1999 323i, What kind of problems to look for? Im a 15 year old looking for an E36 or E46 323/325i to buy. I recentley saw a 1999 323i at a local used car dealership. The guys let us test drive it and was great. It was a 5 speed and I know for a fact that its been serviced by a certified BMW technition that services all of the German cars at dqHP32b.