BMW N47 2.0 diesel
The badge shows the lowest confidence tier on this page and the date the oldest fact was checked — the weakest link, not the best.
Timing drive
Timing chain
No scheduled replacement — but that is not the same as nothing to watch for. See the known issues below.
BMW schedules no replacement — the chain is designed to last the life of the engine. On this particular engine that design intent is not what owners experienced.
The N47 is the reason nobody in the UK trade says "it's a chain, so there's nothing to do" without qualifying it. BMW scheduled no replacement, mounted the chain at the back of the block where it could never be reached without pulling the engine or gearbox, and then watched a generation of guides and tensioners wear out early enough to make the phrase "N47 rattle" common currency. BMW acknowledged a design fault in the tensioner and chain on a defined production window. For a buyer the practical consequence is unusual: a spotless service history is no comfort at all here, because nothing in the schedule ever addressed the part that fails. What matters is whether the chain has been done, and whether it rattles on a cold start.
Timing drive
Chain — drives the camshafts
Chain — no scheduled replacementReported
BMW schedules no replacement — the chain is designed to last the life of the engine. On this particular engine that design intent is not what owners experienced.
Replaced at the same time
- Chain guides and tensioner — the components that actually fail
- Engine or gearbox removal, because the chain sits at the back of the block
What the trade does: No settled preventative mileage exists, because failures have been reported across a wide range — commonly from around 60,000 miles upwards. Specialists advise acting on symptoms, principally a rattle on cold start, rather than waiting for a number.
Attributed to UK BMW diesel specialists. This is industry practice, not a manufacturer specification.
BMW positioned the chain at the rear of the engine on the assumption it would never need access. That decision is what turns a chain replacement on this engine into an engine-or-gearbox-out job.
Scheduled servicing
- Regime:
- Condition Based Servicing (CBS)
- Interval:
- Not established — CBS calculates the due point from how the car is driven, so there is no fixed figure to publish. The car reports it.
- Oil specification:
- BMW Longlife-04 (SAE 5W-30)
Known issues
- Chain guides and tensioner wear prematurely, allowing the chain to slap and eventually skip or break. Reported failures span a wide mileage range, commonly from around 60,000 miles upwards rather than at a predictable point.
- BMW acknowledged a design flaw in the chain and tensioner for engines built within a defined 2007–2008 window, though owner reports of failures extend well beyond it.
- The rear-mounted chain means replacement requires separating the engine and gearbox, which is why the job costs what it does and why it is so often deferred until it fails.
- A rattle on cold start is the diagnostic that matters. Because there is no scheduled item, the service record will not tell you anything about chain condition — only a receipt for the work will.
Cars this engine is fitted to
Questions people ask
Does the BMW N47 2.0 diesel have a cambelt or a chain?
A chain, with no scheduled replacement. That does not make it maintenance-free — chain wear is diagnosed on condition rather than pre-empted at a mileage, so a complete service history says nothing about it.
Is the BMW N47 2.0 diesel an interference engine?
Yes. If the timing drive fails, valves and pistons meet and the damage normally extends well beyond the timing components — which is why the interval is worth taking seriously rather than stretching.
How often does the BMW N47 2.0 diesel need servicing?
We haven't established a published schedule for this engine. Ask a franchised dealer to quote it against your VIN.
Outstanding recalls
We don’t hold recall data and won’t pretend to — it comes from the SMMT via DVSA, and a per-vehicle check needs a VIN rather than a registration. The official checker is free: check vehicle recalls on GOV.UK. You’ll need the make and the VIN, which is on the V5C and usually visible through the base of the windscreen.
Worth doing on any used car: a recall is free to have done regardless of age or how many owners the car has had, and an outstanding one often survives a change of keeper simply because nobody forwarded the letter.
Sources
Related engines
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