BMW M51 engine: specs and known issues
The BMW M51 is a turbocharged inline-six diesel engine with a 2.5-liter displacement, produced 1991–2000, per Wikipedia. We do not have repair prices for it yet.
Specs and history from Wikipedia (revisions listed below)
M51 at a glance
| Production | 1991-2000 | [1] |
|---|---|---|
| Configuration | Inline-6 | [1] |
| Displacement | 2497 cc (152.4 cu in) | [1] |
| Fuel type | Diesel fuel (DIN 51601) | [1] |
| Forced induction | Single turbo, tds-engines also have an intercooler | [1] |
| Valvetrain | SOHC 2 valves x cyl. | [1] |
| Block | Cast iron | [1] |
| Bore × stroke | 80 mm (3.15 in) × 82.8 mm (3.26 in) | [1] |
Cars with the M51
Cars and chassis codes named in Wikipedia's article on this engine. It can include related or successor models, so treat it as a lead and check your exact car. Open a linked model to see its repair costs.
- 3 Series 325td, 325tds (E36)
- 5 Series 525td, 525tds (E34)
- 5 Series 525tds, 525td (E39)
- 7 Series 725tds (E38)
Model pages for the M51
Chassis pages whose cars, per Wikipedia, used this engine.
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Common questions
When was the BMW M51 engine produced?
1991-2000, per Wikipedia.
Sources
- Wikipedia: BMW M51 (revision 1380863475, read 2026-10-23)
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