Stockport & Ashton Under Lyne · Greater Manchester
N47, B47, B37, N57, N13, N20, B38 & B48 engines. Genuine OEM IWIS chain kits as standard. 12 month / 20,000 mile warranty on every job. Same day service.
Important: Many timing chains snap with absolutely no prior warning or noise whatsoever. Do not wait for symptoms before acting. However, if you notice any of the following, act immediately.
The timing chain connects the moving parts at the bottom of your engine to those at the top, keeping everything moving in perfect synchronisation. If it breaks, the pistons and valves collide — causing catastrophic and often irreparable damage.
The most commonly affected engine is the N47 2.0d diesel, fitted to most BMW 1, 2, 3, 4 and 5 Series diesel models from 2007 to 2014. The problem was highlighted on BBC Watchdog in June 2013. The N47 has three timing chains positioned at the rear of the engine — meaning the engine must be removed to replace them properly.
BMW's recommended longlife service interval of up to 18,000 miles is far too long. Old oil accelerates wear on timing components significantly. We recommend an oil and filter service every 10,000 miles or 12 months, whichever comes first.
We recommend replacement at 9 years or 90,000 miles — whichever comes first. Many chains snap without any prior warning or noise at all. If your chain is already rattling, act immediately — replacing a noisy chain costs significantly less than repairing the damage caused by one that has snapped.
N47 — 2.0d diesel, 2007–2014 (most common)
B47 — 2.0d diesel, 2014 onwards
B37 — 1.5d diesel
N57 — 3.0d diesel (6 cylinder)
B57 — 3.0d diesel, newer generation
N13 — 1.6 petrol
N20 — 2.0 petrol
B38 / B48 — 1.5 & 2.0 petrol
Mini N47 — diesel Mini models
✓ All 3 OEM IWIS Tritan coated chains
✓ 4 chain guides & 2 tensioners
✓ Cam & pump sprockets
✓ Oil sprayer & crankshaft oil seal
✓ Injector seals & rocker cover gasket
✓ Fresh oil & filter, new coolant
✓ Air con regas
✓ 12 month / 20,000 mile warranty
We send photos and videos of all work via WhatsApp throughout the repair so you can see exactly what your car needs. Everything explained in plain, simple terms — no jargon.
All prices are fixed and fully inclusive of parts and labour as listed above. No hidden extras. All prices exclude VAT. Use our instant quote tool to get a personalised price for your vehicle.
| Engine | Vehicles | Price | Notes |
|---|---|---|---|
| ── 4-Cylinder Diesel Family | |||
| N47 2.0dMost Common | 1,2,3,4,5 Series diesel 2007–2014 | £960+ VATxDrive add £150 | All X1 & X3 N47 models £1,300 (2WD and xDrive). BMW parts upgrade +£300 (2yr warranty). Mini N47 £1,500 (ALL4 £1,700) |
| B47 2.0d | 1,2,3,4,5 Series diesel 2014 onwards | £1,100+ VATFWD standard | xDrive £1,250. AdBlue models add £200. FWD B47 £1,500 |
| B37 1.5d | 1 Series, Mini diesel | £1,160+ VAT | OEM IWIS kit included as standard |
| ── 6-Cylinder Diesel Family | |||
| N57 3.0d | 3,5,7 Series 3.0d, X5 30d/40d | £1,250+ VATxDrive add £150 | Oil pump & crank bearings recommended (+£1,250). X5 xDrive £1,400 |
| B57 3.0d | Newer 3.0d diesel models | £1,250+ VAT | OEM IWIS kit included as standard |
| ── Petrol Family | |||
| N13 1.6 | 1 Series 1.6 petrol | £795+ VATTop chain kit | If sump removal required: £1,000 |
| N20 2.0 | 3,4,5 Series 2.0 petrol | £1,000+ VATinc. Vanos & tensioner | With oil pump module: £1,500 |
| B38 1.5 / B48 2.0 | 1.5 & 2.0 petrol models | £1,250+ VATRWD / AWD | FWD models: £2,750. xDrive extra: £500 |
If your timing chain has already snapped, the cost of repair depends entirely on the damage caused. The engine must be removed and fully stripped before a final price can be given.
⚠ Please note: These prices apply to N47 2.0d diesel, 2WD models only. xDrive (4WD) variants add £150. The snapped chain price range does not apply to B47 engines — the B47 has a completely different engine design. If you're unsure which engine you have, use our Instant Quote tool or WhatsApp us and we'll confirm.
There is no economy whatsoever in replacing your engine with a cheap second hand or remanufactured unit. These engines almost always contain the original old-type or aftermarket chain components — and in many cases the chain has not been changed at all. You may think you are getting a repaired engine, but you are getting a ticking time bomb.
We regularly take on vehicles where the engine has been swapped out cheaply elsewhere and the timing chain has failed again within months. The only proper repair is a full rebuild using genuine OEM components.
Aftermarket timing chain kits will fail. Anything other than genuine OEM IWIS or BMW parts will stretch, wear and ultimately fail within 12–24 months or 10–30,000 miles.
We carry out a significant number of repeat timing chain jobs every year on vehicles repaired elsewhere using cheap aftermarket kits. The customer paid once, received a substandard repair, then had to pay again — often with additional engine damage. We refuse to fit anything other than OEM IWIS or genuine BMW parts.
Get an instant online quote for your vehicle, or send us a WhatsApp message and one of our BMW timing chain specialists will come straight back to you. Same day service available on most jobs.