The problem is a damaged seal on the gearbox. Fordhas produced a repair kit (part number: 1863642), so you’ll need to follow the procedure in your Haynes Mondeo manual for removing the affected seal, then fit the new one before reassembling the, making sure that all fastenings are done up to the correct torque. The actuator should only move when the engine is started. It is the actuator (little black box) which controls the positioning of the variable vanes inside the turbo. When the engine is switched off, the actuator will push rearward, and when the engine is switched on, the actuator should pull forward. There are three major reasons why oiling issues will cause your Mondeo to knock. The knocking sound isn’t as deep as throwing a rod, but it’s very noticeable. No oil at all. Lack of oil pressure (oil pump, worn engine, or sludge buildup from infrequent oil changes) Water or coolant in the oil. Check the condenser to see if it’s blocked by debris. If your condenser has taken damage or is clogged up, it can’t remove the heat from the refrigerant. Check to ensure that the electric fan over the condenser is engaging. If the cooling system works better on the highway (where fans aren’t needed), your Mondeo may be having fan issues Not sure what gearbox it is, but it's a Getrag Powershift box with wet clutches, fitted to my 2012 Mk4.5 Mondeo 2.0 Ecoboost. On Friday, I took it for its MoT, it failed it due to excessive oil leak. On my return home, sure enough, there's a large puddle of oil where the car was parked. Hi Davie, sorry only just picked up you last post a few minutes ago It could well be an egr problem as it is not unknown on the Mk5 - little bit surprised it has happened on your 2017 model but obviously it can/could do. Disconnect the wire for the parking sensors from the reverse light and see if they work. If on your car the reverse light circuit is controlled by the BCM then it may be sensing the increased current draw and is switching off the supply to the lights. I already tried removing the parking sensor's connection completely. Ford Mondeo Mk4 (2007 - 2013) mechanical engine problems, cooling, modifications and questions associated to all Mk4 Mondeo petrol engines. Here’s more on Ford Mondeo bad fuel injector diagnosis. Not Enough Fuel – The fuel pump may not be able to provide the fuel pressure needed for the engine to run properly. When it asks for a lot of fuel, instead of taking off, it stalls out with the demand. This can be caused by the fuel pump or fuel filter. Auto gearbox problem. Thanks for the reply,mine is a MK4 Mondeo which doesn't have a sport mode,only auto + manual mode. Ford Mondeo Mk4 (2007 - 2013) F72Rp.