Stevey Y

Hi the reason you could not adapt the throttle body was that the ECU already had the values for that body, with regard to diesels not having a throttle I would beg to differ it works exactly the same as a petrol driven car the wiring plug on the side transmits the voltage to the throttle body from the pedal when you push it down so it knows how far to open the butterfly to acellarate or de acellarate, wherever you got this information is very wrong, glad you got it sorted in the end and tell the wife, see you can get the answers from here and save a few bob on labour. Steve.

Hi could be drop links or ARB bushes. Steve.

Hi the milage rules out burning of oil, have you got a dipstick or one of those stupid oil level sensors on the MMI, if its the oil sensor playing up they are garbage mine was telling me my car was overfilled after I serviced it but despite removing a litre of oil it still said overfull so I knew it was screwed and had to replace it. The only other thing I can think of with the water situation is the filler cap may have degraded and need replacing on the expansion tank, these are vented but when old won't hold the pressure, low cost item so worth a punt, most leaks give themselves away as the anti freeze stains the leak. Steve.

Hi possibly the fan control module or the relay, I wouldn't recommend disconnecting the fan as overheating is a distinct possibility. Steve.

Hi the water loss sounds like its a developing weep from somewhere, it might be worth having a look around the water pump, the oil usage depending on the milage might be its burning a bit, my A6 does it now she has reached over 100k it all depends what oil you are using mine does it less when I use Quantum 504/507. steve.

Hi possibly the BEM module gone up the wall its a fairly simple task but I believe a new one will need re coding, have you had your car scanned for faults?. Steve.

Hi the throttle valve is the anti shudder valve by another name, sounds like you have cracked it but I still have reservations as the EGR will not be open when the car is started until the engine reaches operating temperature then when driving slowly through town it only pulses open just a smidgen to cut the emissions, when under hard acceleration it closes completely as the engine needs all the clean air it can get and it definitely shuts its valve when the engine is stopped, I can see the logic of having it deleted but the biggest villain of all the black tar is the PCV valve that allows water and engine vapour into the fresh air coming into the ASV, thats why most of the EGR deletes I have seen run a catch tank between the PCV and the charge pipe going to the compression side of the Turbo. Steve,

Hi personally I would leave it and see what occurs, otherwise you may well spend a fortune on retrofitting parts for no reason, maybe best if you ask whoever did the DPF core removal if what is happening to you is normal, I know for a fact that some of the drivers on my circuit had their DPF cores removed and experienced a droning inside the car afterwards allied to a louder exhaust note but as it turned out it was something they just had to live with and did not affect the life of the cars engine, as for Turbine failure the jury is still out on that one. Steve.

Hi you didn't mention the DPF being filleted before, I would hazard a guess that your particular problem is a lack of back pressure allowing the compressor vanes to massively over run, I have seen this before down at Essex Turbos where they had built a Turbo for an RS Focus albeit petrol, the completely de restricted exhaust allied to the Mountune modifications, increased power band and horse power with added torque was causing massive overrun and the compressor vanes were breaking off, this explains the phenomenon you are experiencing as you no longer have the back pressure to slow the vanes down.

Hi the only difference between the S-Line and the Sport is the springs on the S-Line are shorter and stiffer except in the case of my daughters Q3 S-Line where the spring and shocks are the same as the standard Q3 its just the interior and badging on the outside are different, the shock absorbers nowadays are designed to operate with standard and factory lowered suspension, its all smoke and mirrors. Steve.

The code you have is for an air intake leak behind the MAF sensor so the the engine is getting unmeasured air into it, this would cause the DPF to start blocking as the ECU will start an overfueling strategy to cope with the extra air but once the leak is cured a good forced regeneration should sort that out. Steve.

Hi have the car read for codes that will tell you most of what you need to know, the smoke is with out doubt a bad injector that has lost its spray pattern, the overboots is caused by the MAP sensor not correlating the information from the MAF, best practise is change them both, the leak sounds as if its between the lift pump and the high pressure pump, some codes would be nice. Steve.

Hi Ahmed if they changed the water pump there is no real reason to be playing with oil seals as they are a separate entity to the cooling system, they changed the seal free of charge which suggests they knew what they had done, my advice would be to take the car to another garage and get another opinion as you are in for another fan belt, the one in the picture is shot also if the oil ingression has gotten in to the cam belt you are on very thin ice as if the oil degrades the belt the timing will slip, very expensive. Steve.

Hi it won't matter if the EGR is blanked and mapped out, if you removed the thing completely and blanked the feed you wold get an engine light up as although it no longer functions as it should it is almost a placebo effect as on a lot of the deletes that is part of the process of fooling the ECU into thinking its still there and working as it should, easy way to test the remap quality is unplug the valve and see if you get a light up, from experience a complete delete with the unit removed is very expensive and normally reserved for track cars, I watched one being done on a 330 BMW once and it took nearly three hours to do which involved removing the ECU and changing the chips inside. Steve.

Hi the seats are only heated if it was specified as a build option when the car was build specked, very few manufacturers have a true heated screen as Ford own the patent for the quick clear screen, I have seen a couple of Merc models with it but Ford charge a fortune to issue a limited licence for other manufacturers vehicles. Steve.

Hi you won't get that on a petrol vehicle as its as you say a different set up, what you describe as turbo flutter sounds very much like the EGR doing its repositioning cycle my car does it and has done since the day I got it 62k ago, I think you are possibly over reacting to a noise that has probably been there all along I seriously don't think your vehicle has any major problem. Steve.

Hi are you using cheap fuel this will cause that sort of problem as it won't burn properly and causes larger soot particles, have a look on the net for a DPF cleaner that you can add to the fuel if you do a lot of city driving. Steve.

Hi wrong, the ASV closes to eliminate any further air going in when the engine stops once stopped the butterfly valve promptly goes back to its vertical position [wide open] until the ECU tells it to assume its starting position when the ignition key/button is at position two, as for the fluttering all turbos run on a couple of second after the engine shuts down, on the old turbines back in the eighties the advice was to sit there idling for at least five minuets after a run to allow the turbo to slow down, the bearing shafts on these old units ran in a small bath of oil but anything after that was pressure fed with oil so the bearing chamber is fed until the bearings stop moving, removing the pipe just dissipates the last of the air more quickly. Steve.

Hi what engine does you car have if its the same as my 16 plate a CNHA unit the boost pressure sensor sits at the back of the engine on the right hand side just above the inlet manifold on its own little bracket and a pipe which runs down to the inlet manifold, its easy to change and is about £60, if you can post a picture of your engine bay without the plastic cover then I can confirm. Steve.

Hi get VCDS then you can set the inspection due to rows of zeros so it never comes on again, I have done it with my car and the process is applied to all Audi models. Steve.

Hi I felt really sorry for your unsuspecting dealer for about two milliseconds, he was probably used to saying NO and the victim going away to pay for it themselves but he came well and truly unstuck with you, 10/10 for effort well done. Steve.

Hi not sure about Tourque Pro but I know you can use OBD11 that works, I must admit what your wife said about this site made me smile, thats why your mobile mechanic has not appeared as with the right tools its a simple job but the thing that scares him is the relearn, I suspect its a bit above his pay grade, this site has helped many people and we have given you the correct information to complete the task which begs the question, why ask the site. Steve.

Hi did you relearn the new values on the replacement throttle body if you don't do this they run like a bag of nails, also did you have a code for the EGR. Steve.

Hi like you said Gareth the car could have come from a PX arrangement from an Audi dealer and I am sure it would have been driven so the fault may have presented itself then, which proves my point, they lie to each other let alone the end user. Good skills Karl it just shows what a bit of persistence and your own flame thrower will produce, would love to have been a fly on the wall for that one. Steve.

Hi, sounds like a faulty thermostat or temp sensor or still has air in system or cylinder head temp sensor giving monkey. readings. Steve.