If you’re in Dorking and your BMW or Ford has started rattling on cold mornings, the workshop you want is closer than it looks. We’re on Copthorne Common, about fourteen miles south-east, and most drivers reach us in under half an hour — an easy run along the A25 through Reigate, or down the A24 and round the M25. We’re not a general garage; we only do two things — timing chains on BMWs and wet belts on Fords.
Why Dorking drivers choose Timing Chain Gatwick
Dorking sits in proper commuter-belt Surrey, which means a fleet leaning heavily on premium German metal and capable diesels — many with known timing chain issues. When you’re handing your car over for a job this involved, a few things really matter:
- Genuine OEM parts only. BMW, Ford and INA/Febi-grade chain kits and wet belts — never the cheap pattern chains that stretch again inside 20,000 miles.
- Free collection within 15 miles. Dorking, RH4 and most of RH5 sit inside that radius, so we’ll come and get the car rather than make you nurse a rattling engine over the Downs.
- Fixed-price quotes. You get the total before any spanner moves. No mid-job surprises.
- 12-month warranty on parts and labour.
- Single-specialism workshop. Every tech here has done these engines hundreds of times.
Dorking cars and vans we work on
The cars you see along West Street or queuing at the Deepdene crossing are exactly what we deal with: BMW estates and X-models on the school run, Range Rovers on the lanes out to Westcott and Mickleham, and a working backbone of Transits and Fords serving the trades around Brockham and Newdigate. Here’s where we come in:
- BMW N47 (2.0d) — the rear-of-engine chain that’s well known for stretching. Found in 118d, 120d, 318d, 320d, 520d, X1 and X3 from roughly 2007–2014.
- BMW N57 (3.0d) — same rear-mounted layout, fitted to 330d, 530d, 730d, X5 and X6. Popular round Dorking thanks to the towing and motorway mileage.
- BMW B47 — the later 2.0 diesel across the F-series 1, 3 and 5 Series and the X-range. Quieter than the N47 but still fails, especially on shorter trips.
- BMW N20 and B58 petrols — the 2.0 turbo four and the newer 3.0 straight-six. Chain guides and tensioners are the usual story.
- Ford 1.0 EcoBoost — Fiesta, Focus, B-Max, EcoSport and Puma. The wet belt runs in the oil bath and can shred without much warning. There’s a full breakdown on our 1.0 EcoBoost wet belt page.
- Ford 1.5 and 2.0 EcoBlue diesels — Focus, Kuga, Mondeo, Galaxy, S-Max and the Transit and Transit Custom vans. See our Transit EcoBlue belt page for the van-specific job, or the wider EcoBlue wet belt write-up.
If you’re not sure whether your engine is on that list, just give us a ring — there are a few overlapping codes we cover that don’t always show up on the brochure.
Free collection from RH4 and RH5
If your chain is already chattering, the last thing you want is to drive it further — especially up Box Hill or down the A24 in traffic. We collect free of charge across Dorking and the surrounding villages. That covers:
- Dorking town centre, West Street, the High Street and out by both railway stations
- North Holmwood, Pixham and the southern edge of town
- Westcott, Westhumble and the lanes towards Shere
- Mickleham, Brockham and Newdigate, plus the rest of RH5
If the car can’t be driven, recovery can be arranged — just say so when you call. Full details on our areas we cover page.
Warning signs to act on
Timing chains and wet belts nearly always give some warning before they let go. The problem is the warnings are easy to dismiss — until they aren’t. If you’re driving any of the engines above around Dorking and you spot any of the following, get it looked at sooner rather than later:
- Cold-start rattle — a short metallic chatter when you first turn the key, typically from the back of the engine on the BMW diesels. It gets longer and louder over weeks.
- Fault codes such as P0016, P0017 or P0008 (camshaft/crankshaft correlation), or BMW-specific codes around VANOS timing.
- Low or fluctuating oil pressure, or the oil pressure warning light flickering on at idle or at junctions.
- Rough running, misfires or a sudden drop in MPG as the timing drifts out of phase.
- Black sludge or rubber flakes in the oil on Fords with a wet belt — that’s the belt itself coming apart inside the oil bath.
- Whining or rumbling from the cam cover area, especially under load on the climb up Pebblecombe or Box Hill.
If a chain snaps or a wet belt shreds, you’re usually looking at bent valves and a potential engine replacement. Catching it at the rattle stage is dramatically cheaper.
Costs and what’s involved
The honest answer: timing chain and wet belt work isn’t cheap, but it’s a fraction of an engine rebuild. The figure depends on the engine and whether we’re fitting the chain kit alone or also doing the oil pump chain, tensioner, guides and seals.
On the BMW diesels — N47 and N57 especially — the chain sits at the rear of the engine against the bulkhead, so the gearbox has to come out for proper access. It’s a full day’s labour minimum. We always recommend doing the oil pump chain at the same time, because it uses the same access — doing it later means paying for that strip-down twice.
On the Ford wet belts, the belt itself isn’t expensive, but it runs in oil so the front cover has to come off and be properly resealed. We replace the water pump and tensioner at the same time as standard.
For a proper figure on your exact car, the quickest route is our free estimate form — pop your reg in and we’ll come back with a fixed price, not a vague starting figure.
Book your Dorking collection
If something doesn’t sound right under the bonnet, don’t keep driving and hope it settles. Ring us on 01342 643 780, email info@timingchaingatwick.co.uk, or use the contact form and we’ll get a quote and a collection slot booked in. We’re open Monday to Saturday, 9am to 6pm, closed Sundays.
Other areas we cover
We look after drivers right across Surrey, Sussex and the M25 corridor. If you’re closer to one of these towns, the local page might be more useful: