Great to drive and superbly built. The reason for the failure is breaking up of the plastic timing chain tensioner that needs to be inspected regularly for wear once the car is past 5 years old or 50k miles. With new car demand down, we see some newcomers to the best-selling list. I am currently running a 2008 BMW 118d. Cononavirus Update: Garage opening and MOT update. www.honestjohn.co.uk/faq/consumer-rights/. Most commonly affecting the 2.0 litre diesel with the N47 engine, we also regularly rebuild damaged engines in the 3.0 litre diesel range, BMW petrol engines and also BMW Minis. I have bought a 2008 BMW 118 diesel. impee shows you how to replace a BMW 3 Series e46 N42 Timing Chain Tensioner in a short DIY video Visit BMW E46 / N42: Timing Chain Tensioner, Comparing and Testing … N43 Timing chain & guides replacement £499.00 inc vat. Which in turn making the labour of the replacement slightly higher than vehicles with the chain fitted to the front of the engine. With the age of these vehicles/ engines creeping up. Timing Chain Tensioner For BMW 116i 118i 120i 316i 318i 316 Ci 318 Ci N42 N43/46. The engine timing chain is very weak – it stretches over time, and ultimately snaps. So I think you can claim that negligence by the dealer in servicing the car led to the failure and, since you have nothing to lose you could take your case to the small claims track of the county court. Hiring rather than buying? Using the original chain above these limits, the risk of failure is very high. Our guide will save you money, NEW: Child seat chooser - Don't buy a car seat until you've used this. The tables below detail the affected models and engine codes: Over 6 years old your chances are not so good. N43 Timing chain & guides replacement BMW N47 Manual Timing chain replacement If the timing chain & guides are replaced before this fault occurs, this will save the labour removing the engine sump to clean & remove the broken parts of the failed chain guide. N12, N14, N16, N18 Timing chain replacement Burch Motor Works are specialists in BMW and Mini servicing, fault diagnosis and MOTs. Coronavirus: Can I still drive my car during England's lockdown? Copyright Prestige 2020. The most common is the N47 – 4 cylinder diesel engine, fitted to most small engine BMWs from 2007 to 2014. Difficulty Level: Easy. In some cases, the alternator drive belt can be worn/ cracking from age. £1299.00 inc vat (Not including Clutch & Dual Mass Flywheel, or Automatic Transmission Fluid & Filter). Should BMW pay for timing chain tensioner failure? These engines are also prone to excess engine oil consumption, caused by worn valve stem seals allowing engine oil to vacuum bypass into the cylinders. Prices: Professional labour costs for Timing Chain Tensioner replacement - £35 (private) or £165 (BMW) - per hour X 0.5 hours Call 01425 277800 to book your car in for a service. We use a special to that allows us to replace the valve stem seals without removing the cylinder head, making the repair very cost effective! Whilst the engine is apart to replace the timing chain, it is recommended to replace the valve stem seals, saving labour in the future for this separate repair. It is more likely that the replacement engine will have been recovered from a damaged car – it’s also likely that it won’t have the modified BMW replacement timing chains, guides and tensioners – so they will just snap again…. The replacement of the BMW N20 timing chain is accompanied by the installation of new camshaft sprockets, tensioner rails, and caliper. £949.00 inc vat (Not including Automatic Transmisson Fluid & Filter), MINI N47 Manual or Automatic Timing chain replacement You can view their report on the BBC website here: BBC Watchdog Report – BMW Timing Chain Failure, Cheaper Engine Repair Options High mileage BMW 1 Series - keep or sell? Sometimes, the tensioner grows weak and begins to fail, causing the engine to give off an annoying rattle on deceleration.