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New to the E46, or shopping for one? The big read is on the way.
Problems & Reliability
E46 Common Problems & Reliability
How reliable the E46 really is — the cooling system, the notorious rear subframe cracking, VANOS, control arms, the engines, and which variant to buy.
Read the guide →Buying
Going to look at one? Check the subframe first.
DIY Guides
Hands-on walkthroughs for the jobs that matter most — coming soon.
DIY · Cooling
Cooling System Overhaul
The must-do E46 job — radiator, metal-impeller water pump, thermostat and the infamous expansion tank, with full parts list.
Read guide →DIY · Service
Oil Change (by Engine)
The half-hour job that keeps the engine alive — with the right oil and capacity for every E46 engine, including the M3's 10W-60.
Read guide →DIY · Brakes
Brake Pad & Rotor Replacement
Pads, rotors, sensors and fluid front and rear — the easy job the E46 makes friendly.
Read guide →DIY · Ignition
Spark Plugs & Ignition Coils
Cure misfires the easy way — coil-on-plug plugs and coils refreshed in about an hour.
Read guide →Ownership
What it takes — and costs — to keep one on the road.
Performance
A sublime chassis — and a six that loves boost. Where to spend for handling and power.
Guides for Every BMW
Generation-agnostic buyer's guides that apply to your E46 too.
DIY Tools
The kit every BMW owner needs
Engine Oil
The right spec by engine family
OBD2 Scanners
Codes & battery registration
Floor Mats
All-weather & cargo liners
Detailing Kit
Brake dust, swirls & leather
Dash Cam
Protection & parking mode
Phone Mount
Magnetic, vent & bracket
LED Bulbs
Interior, plate & canbus
Tires
All-season, summer & winter
Car Covers
Indoor & outdoor
Battery Tender
AGM trickle charger
Microfiber & Wash
Swirl-free wash kit
Replacement Battery
AGM & registration
BimmerCode
Coding & hidden features
Dragy GPS Meter
0-60, ¼-mile & lap timing
All Generations
E30 → G20