Step-by-step repair guides for Renault vehicles including Clio, Captur, Mégane and Trafic - written by a professional UK mechanic. Renault diesels are popular across the UK and are generally straightforward to maintain at home once you have the correct procedures. From timing belt services on the Clio to glow plug replacement on the Trafic van, these guides cover the jobs in full - with the correct part specifications, torque settings and any special tools required.
The Captur diesel fuel filter is hidden in the front wheel arch behind the liner. Full housing disassembly, filter element and O-ring replacement.
Reset the service interval using just the stalk buttons. Also works on Clio, Megane and Kadjar.
Full timing belt service including flywheel locking, alternator removal for water pump access and tensioner setup.
Footwell access with T20 Torx. No need to remove the clutch pedal despite what dealers claim. Saves a lot of money.
Front wipers dead, rear works fine. Scuttle panel removal, multimeter testing and internal contact corrosion diagnosis.
Quarter-drive 10mm socket method to replace all four glow plugs on the 2017 Trafic 1.6 dCi. Same as Vauxhall Vivaro and Nissan Primastar.
13mm slider bolt caliper system on the 2022 Trafic. Full disc and pad replacement including caliper carrier cleaning and correct pad fitting.
Two of four plugs failed. Full testing and replacement guide. Quarter-drive 10mm essential. Also applies to Vivaro and Primastar.
Guides cover cambelt and water pump replacement on the Clio 1.5 dCi, fuel filter replacement and service light reset on the Captur, pollen filter and wiper motor replacement on the Mégane MK3, glow plug replacement on the Trafic 1.6 dCi and 2.0 dCi, and brake disc and pad replacement on the 2022 Trafic. Renault's K9K diesel engine is one of the most common diesel units in Europe and is found in the Clio, Captur and older Mégane - timing belt service intervals must be followed precisely on this engine.
The K9K's reputation is deserved, but it rewards discipline. Glow plugs are a genuine service item on these engines - hard cold starting in winter is the classic symptom, and both Trafic guides above cover the replacement - and the injector seals and turbo oil feed deserve attention on higher-mileage examples: strict annual oil changes with the correct low-SAPS oil are the cheapest turbo insurance you can buy. Like every small diesel, the K9K's EGR valve and DPF clog on short-journey work, so a weekly motorway run matters. The petrol alternative, the 1.2 TCe, has its own watch points - it can use oil and its timing chain suffers if the level runs low, so check the dipstick monthly and never stretch a service.
Renault electrics are better than their reputation, but a few quirks are worth knowing. The keycard system on the Clio, Captur and Mégane gets through batteries and the cards themselves wear - keep a spare battery in the glovebox before the card dies entirely. Window regulators and wiper motors are the most common electrical failures on the Mégane MK3, and the wiper motor guide above covers the diagnosis sequence properly so you replace the right part first time. Service light resets are a button procedure on most models rather than a diagnostic-tool job - the Captur guide shows the sequence.
The Trafic deserves its own mention because so many are in daily commercial use - and because the same van is sold as the Vauxhall Vivaro and Nissan NV300, so the guides above apply across all three badges. Hard-worked vans eat clutches and dual mass flywheels, brake discs and pads wear fast under load (the 2022 Trafic brake guide above covers the current van), and the suspension picks up MOT advisories for drop links and tired springs. Parts are cheap and shared across the Renault-Nissan range, every UK factor stocks them, and almost every job on these vans is honest spanner work with good access.