Skip to content
LEIGH’S AUTO CLINIC

Engine & Drivetrain

Engine Repairs & Timing Chains

Oil leaks, misfires, timing chain rattles and head gaskets – BMW N-series and B-series engines and every other make.

All makes & models

From a leaking valve cover or oil filter housing gasket to a stretched timing chain or a full engine overhaul, we do the work in-house. We sort out misfires, coils and injectors, VANOS and Valvetronic faults, replace timing chains and guides with the correct locking tools, and repair head gaskets and cylinder heads.

Before any major engine work we explain exactly what we found, what it will cost and your options – including new or used replacement engines.

What’s included

  • Valve cover & oil filter housing leaks
  • Misfires, coils, plugs & injectors
  • Timing chain & guide replacement
  • VANOS & Valvetronic repairs
  • Head gaskets & engine overhauls

Signs you need this

Oil leak or burning smell

Book soon
  • Valve cover gasket
  • Oil filter housing gasket
  • Sump gasket or oil cooler seals
  • Turbo oil feed or return line

A burning smell after a drive often means oil is dripping onto the exhaust. An oil filter housing leak can also contaminate the auxiliary belt – fix it before it causes bigger damage.

Rattle on cold start

Book soon
  • Timing chain or guides stretched
  • Chain tensioner losing oil pressure
  • Heat shield loose on the exhaust
  • Auxiliary belt tensioner

A few seconds of rattle on start-up is often the timing chain. Ignoring it can let the chain jump a tooth – which can destroy the engine. Let us listen to it.

Diagnose first
Written quote
Guaranteed work

Cambridge · East London

Is your car feeling unwell? Bring it to the clinic.

BMW or any other make – book online in two minutes, send a WhatsApp or give us a call. We diagnose properly, quote in writing and only start once you approve.

Leigh's Auto Clinic

Typically replies quickly

Hi there 👋 BMW or any other make – warning light, strange noise, service due or looking for a spare part? Send us a WhatsApp with a photo of the dash or your licence disc.

Start chat