BMW · Coupé · 1998–2006
BMW 3er E46 Coupé
Weaknesses, engine ratings and buying advice
★★★★★
2.3 / 5.0 · Based on 11 engine variants Most Fun Engine
204–272 PS
3.0L Magnesium Benzin
Rewarding at Every Rev
Fun to Drive! Problem Engine
116–136 PS
2.0L Diesel Diesel
7 weaknesses
Stay Away!Engine Overview
The BMW 3er E46 Coupé is available with 6 engine variants — from 99 to 272 hp.
320d Engine Change
2001 2006
Stay Away! 5 weaknesses
2003 2006
Stay Away! 7 weaknesses
2003 2006
Stay Away! 7 weaknesses
316Ci
2000 2002
Be Careful 5 weaknesses
320i Engine Change
2000 2006
Stay Away! 5 weaknesses
2000 2006
Stay Away! 5 weaknesses
2000 2006
Stay Away! 5 weaknesses
323i Engine Change
1998 2000
Stay Away! 5 weaknesses
1998 2000
Stay Away! 5 weaknesses
325i Engine Change
2000 2006
Be Careful 6 weaknesses
2000 2006
Be Careful 6 weaknesses
330i
2000 2006
Be Careful 6 weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Coolant expansion tank bursts The plastic coolant expansion tank becomes brittle through thermal cycling and cracks or bursts — on almost every E46. A typical 3–4 cm crack appears along the housing edges. Risk of engine damage through overheating. Symptoms: Sudden coolant loss; coolant smell in engine bay; temperature rises sharply; steam from engine bay. from 120,000 km | Low |
Frequently Asked Questions
What problems and weaknesses does the BMW 3er E46 Coupé have? +
The BMW 3er E46 as Coupé has 68 known weaknesses, 7 vehicle-related.
Which engine is recommended? +
Be Careful: M43B16 (1.6L 8V), M52B20 (2.0L 24V), M52B28 (2.8L 24V), M54B25 (2.5L 24V), M54B30 (3.0L 24V), N52B25 (2.5L Magnesium), N52B30 (3.0L Magnesium). No engine is rated 'Good Choice'.
Is the BMW 3er E46 Coupé worth buying used? +
Caution is advised with the BMW 3er E46 Coupé — 4 of 11 engine variants are rated 'Stay Away!'.
Last updated: February 2026 · All information without guarantee