M47
BMW · M47 2.0 Diesel I4
1998–2007
"Pre-N47 diesel. Early M47D20 (non-common-rail) is simple. M47TU (2001+) has swirl flaps that can destroy engine. Remove flaps preventively."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Swirl flap catastrophic failure (M47TU)
▸Rattle or sudden failure
M47TU (2001+) swirl flap screws loosen. Metal enters engine. Preventive delete mandatory.
ΚΡΙΣΙΜΟ: Αφαίρεση swirl flaps. €100-200 αφαίρεση vs €1,500-8,000 αν σπάσουν.
Common rail injector failure
▸Hard start, rough idle, smoke
Injectors wear from fuel quality. Replace individually or set.
Μπεκ — ελέγξτε ανά 120k km. €400-1,200.
Related Guides
Other BMW Engines
Tuning Potential
180hp Stage 1 on common rail
Frequently Asked Questions
Is the BMW M47 reliable?
The BMW M47 scores 62/100 with a verdict of CAUTION. It has 2 documented issues with total repair costs between €1,900 and €9,200.
What are the common problems with the M47?
The most common issues are:
- Swirl flap catastrophic failure (M47TU) — critical, repair cost €1,500–€8,000, 60,000 km–150,000 km
- Common rail injector failure — high, repair cost €400–€1,200, 100,000 km–200,000 km
How much does it cost to repair the M47?
Total potential repair costs for all 2 known issues range from €1,900 to €9,200. The most expensive issue is typically .
What years was the M47 produced?
The BMW M47 was produced from 1998 to 2007. It is a 1995cc I4 diesel engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.