BMW & MINI B37 Timing Chain Replacement Specialists

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BMW & MINI B37 Timing Chain Replacement Specialists

BMW & MINI B37 Timing Chain Replacement From £1299

Looking for a trusted BMW and MINI B37 timing chain replacement specialist? At BM Diesel Engine Works, we specialise in diagnosing, repairing and replacing timing chains on BMW and MINI vehicles fitted with the B37 1.5 diesel engine.

Our experienced technicians use only genuine OE-quality components, including premium IWIS timing chains and timing chain components, ensuring long-lasting reliability and performance.

What Is The BMW B37 Engine?

The BMW B37 is a 1.5-litre three-cylinder turbo diesel engine introduced by BMW as part of its modular engine family. It shares many design principles with the larger B47 and B57 diesel engines and is commonly found in both BMW and MINI models.

Popular vehicles fitted with the B37 engine include:

BMW Models

BMW 114d
BMW 116d
BMW 216d
BMW 218d Active Tourer
BMW 316d
BMW 318d (selected models)
BMW X1 sDrive16d
BMW X2 sDrive16d

MINI Models

MINI One D
MINI Cooper D
MINI Clubman D
MINI Countryman D

The B37 engine is known for excellent fuel economy and low running costs. However, like all timing chain-driven engines, timing chain wear can occur over time, particularly on higher mileage vehicles.

Common BMW B37 Timing Chain Symptoms

If your BMW or MINI B37 engine is showing any of the following symptoms, a timing chain inspection is recommended:

Timing Chain Rattle

A metallic rattling noise from the engine, particularly during cold starts.

Engine Management Light

Timing chain wear can cause camshaft and crankshaft correlation faults.

Catastrophic Timing Chain Failure

In severe cases the timing chain can jump timing or fail completely, causing extensive engine damage.

Timing Chain Stretch

Over time, the timing chain can stretch, affecting engine timing and performance.

Poor Running

• Reduced performance
• Hesitation
• Rough idle
• Increased fuel consumption

Early diagnosis can save thousands in repair costs.

Book a Timing Chain Inspection

BMW B37 Timing Chain Replacement Service

Our comprehensive B37 timing chain replacement service includes:

Fault code scan and verification
Genuine IWIS timing chains
New timing chain tensioners
New guide rails
New seals and gaskets where required
Timing chain inspection
Engine timing setup using specialist BMW tooling
Oil and filter service

We follow manufacturer repair procedures and use specialist BMW diagnostic equipment throughout the repair process.

Genuine IWIS Timing Chains & Components

BMW use IWIS timing chains as original equipment on many BMW and MINI diesel engines.

We strongly recommend genuine IWIS timing chain kits due to their superior manufacturing quality, durability and OE specification fitment.

Benefits include:

OE manufacturer quality
Improved wear resistance
Proven reliability
Long service life
Precise engine timing

For more information visit our dedicated:
IWIS BMW Timing Chains Guide
Learn why genuine IWIS chains are trusted by BMW specialists across the UK and how they compare to lower-quality aftermarket alternatives.

BMW & MINI B37 Timing Chain Failure Repairs

Has your timing chain already failed?

A snapped or jumped timing chain can result in:

Bent valves
Damaged rocker arms
Broken camshafts
Cylinder head damage
Piston damage
Crankshaft timing issues

Our workshop regularly repairs BMW and MINI engines that have suffered timing chain failure.
Every engine failure is different, therefore repair costs vary depending on the extent of damage.