AOC Admin

I recently witnessed a drop in mpg in my Honda CRV cdti and this was due to two things. Firstly, the clutch has started slipping slightly (common fault on these) which is contributing to the lower mpg (was 48 then started dropping to around 39). Secondly, just changed the oil and the mpg has increased slightly to around a constant 42 mpg which is acceptable until I replace the clutch. As Gareth has suggested, all factors such as tyre pressures, quality of fuel, etc all contribute to the overall mpg obtained.

Hi Laura...welcome to the Forum At a rough guess without knowing the dimensions of your 18" rims and tyres I would imagine that coming down from 18" to 16" (even with a large profile tyre) there should still be room under the wheel arches. The best bet would be to try one on the car before you buy and see if the wheels turn lock to lock without scrubbing against any bodywork. Let us know how you get on with it Cheers Trevor

What year is it?

Hi Mick How is it progressing with rectifying the fault? Cheers Trevor

Hi Richard...welcome to the Forum Sorry to hear you've had major issues with your Audi's. It does seem to be a major problem with the TFSi engine and something which should be sorted by Audi with regards to a recall or financial assistance....mainly because it is not a serviceable maintenance component. Keep posting! Cheers Trevor

Hi Richard It may be worth giving these guys a call to see if they can beat the price you have been quoted http://www.audiownersclub.com/insurance/?utm_source=Forum-Header&utm_medium=Slider Let us know how you get on with it Cheers Trevor

A modern engine should not vent to atmosphere but the venting noise could be an air pump/valve or even acoustic valves in the inlet manifold, but it may be worth checking it with a specialist Audi repairer to ensure it is not doing any damage to the engine. What motorcycle(s) do you have?

Keep us informed and if possible if you could put a brief description on here about the process that would be really helpful to anyone else who has the issue and we can then place it in the Technical Section of the Forum. Cheers Trevor

Hi Steve...welcome to the Forum Generally the A4 is a great car and depending on your driving usage I would say that the diesel engine is the better option to go for. Keep us informed as to how you get on with finding one Cheers Trevor

Hi Tim...welcome to the Forum Sounds like the climate control may need resetting if its blowing out different temperatures in different directions. Cheers Trevor

Hi James....welcome to the Forum Just ask away if you have any questions...not always sure we'll have the right answers though, lol Cheers Trevor

I can see your point...getting it checked over is definitely a good place to start though. Keep us informed of progress

Hi Ray...welcome to the Forum It certainly looks fantastic in that colour with those wheels. Keep us informed of any mods you carry out...would be interested to see how it progresses. Cheers Trevor

Hi Karen....welcome to the Forum That's not particularly good news for a new Audi but I think it stems from poor design as opposed to a defect. The manufacturer may bring out a modification for it in time, but worth nagging them as this may push through something sooner. Probably best not to put a laptop in the boot this time of year as when you bring it inside it tends to sweat with condensation from going from the cold into the warm and this can lead to internal corrosion. Let us know how you progress with any modifications Regards Trevor

This may help you...not too sure of it's origin

Hi Sam....welcome to the Forum Look forward to reading your posts Cheers Trevor

Hi Wilson...welcome to the Forum Post up some piccies of your new Audi if you would like to. Cheers Trevor

Hi Aaron....welcome to the Forum and to the world of Audi It must seem like an eternity to wait for it to arrive. Let us know when you get it Cheers Trevor

Ouch!!!! that looks quite severe! Definitely another cylinder head needed. http://www.audiownersclub.com/parts-results/A4-S4-RS4/Cylinder-Heads--Head-Covers-/61363

Ouch!!!! that looks quite severe! Definitely another cylinder head needed. http://www.audiownersclub.com/parts-results/A4-S4-RS4/Cylinder-Heads--Head-Covers-/61363

Hi Nick...welcome to the Forum I would run a scan on the engine management system to see if there are any fault codes logged for the misfire. If not, then it could be virtually anything, even the quality of the engine oil or vacuum leaks....best to test the individual systems before replacing any components though. Keep us informed on how you get on with this Cheers Trevor

I would say that 44mpg is not too bad overall but way short of manufacturer claims. The manufacturer claims have recently been proved as inaccurate as they were carried out on a rolling road simulation...so I wouldn't worry too much about what they claim. Several A7 owners have complained of even lower mpg figures. Remapping may increase economy so possibly worth looking into. Cheers Trevor

Hi Steve...welcome to the Forum Sounds like a strange problem...cannot think of anything logical that would help in this instance. Hopefully, some other members may be able to shine some light on it...anyone ??? Cheers Trevor

You can get a replacement service book from the dealer and if you know where it was serviced they should be able to print out a history of the car to attach inside the book. Here's a link to a useful site with schedules http://www.audilynbrook.com/audi-scheduled-maintenance-guides.htm

oh my goodness...that's still a huge amount of money. I would certainly contemplate putting some coolant stop leak in the system first to see if that cures it because porous castings are only where there was an air pocket when casting the component and a simple stopleak solution 'cures' the minute hole and may last the life of the engine.