I know having a downer on Renault is kind of frowned upon on this forum. Sorry, but I'm having a bad car day.
Down away matey, posting might make you feel better!
We don't frown on people who post problems with their Renaults, or any other car for that matter, we just like a balance of people telling positive stuff too otherwise you get situations, like with other nameless forums, where people think that all cars of a particular make or model have the same problems!
Hope it gets sorted today, let us know how you get on!
All cars have weakness's and parts that vibrate lose or corrode or wear away.
If I worked on the design team at renault I think I would be suggesting this kind of forum should be part and parcel of the renault ownership. Owners would have the benefit of expert advice and designers could have the feedback they need to improve designs and more importantly dealers would be better trained to solve common problems.
In a piston engine, top dead centre (TDC) is used to determine the position of a piston in which it is further from the crankshaft. This is used to determine when to generate a spark. Many Renault models appear to experience problems with the TDC sensor, but it is a simple and inexpensive part to replace.
Running on two cylinders when hot would suggest
packs, ht leads or plugs have a fault..Have these been checked by the dealer ?
If you have a friend with a little car knowledge ask them to check these parts for you. Look for dirty or damage plugs like this..
A lot of the 1.6 engines seem to struggle running the aircon whilst idling or sitting at the traffic lights. Do you find this ?
An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system which transforms a storage battery's 12 volts to the thousands of volts needed to spark the spark plugs.
This specific form of the autotransformer, together with the contact breaker, converts low voltage from a battery into the high voltage required by spark plugs in an internal combustion engine.
In older vehicles a single (large) coil would serve all the spark plugs via the ignition distributor.
In modern systems, the distributor is omitted and ignition is instead electronically controlled. Much smaller coils are used with one coil for each spark plug or one coil serving two spark plugs (so two coils in a four-cylinder car). These coils may be remote-mounted or they may be placed on top of the spark plug (coil-on-plug or Direct Ignition). Where one coil serves two spark plugs (in two cylinders), it is through the "wasted spark" system. In this arrangement the coil generates two sparks per cycle to both the cylinders. The fuel in the cylinder that is nearing the end of its compression stroke is ignited, whereas the spark in its companion that is nearing the end of its exhaust stroke has no effect. The wasted spark system is more reliable than a single coil system with a distributor and cheaper than coil-on-plug.
Where the coils are remote mounted they may all be contained in a single moulded block with multiple high-tension terminals. This is commonly called a coil-pack.