pandj

Hello, Thank you for your replies. The mileage is approx 65,000. In order to clean the vanes, is there a sensible access route to the turbo, and does the it have to be withdrawn or can the work be done insitu? Regarding the unsteady temperature readings, the thermostat was diagnosed as faulty, but just keeping an eye on the gauge to ensure all is now steady from the sensor. Again, thanks for the guidance.

Hi, and thanks for a quick and helpful reply. I will get a diagnostic done and go for replacing the CTS - looking at Euro-Carparts they are cheap enough, but there are two units shown, but the VIN number should sort that. I should also mention that I'm now trying a different technique of first start-up having read some advise on diesel turbo's elsewhere. I let the engine idle for 30 - secs 60, before driving away and then idle again before switching off. I don't know how beneficial this really is to the turbo, but until I learn otherwise..... It does seem to help, when I remember to do it, and also initally I am trying the quick short up through the gears technique so keeping the initial power revs down when the engine is cold. That does seem to work, but doesn't overcome the unpredicatable later entry into the "limp home" mode, which is not so easy for my wife when she is driving. No comments please about women drivers!

Hi, we are new to the forum and are pleased to have found it. Our 2002 Octavia TDi 110 Elegance has developed a few non-permanent problems, particularly with the turbo, or so it would seem. I will try to give a clear description. When the engine is cold and if accelerating only slightly more than a steady increase in speed say no higher than 1750 - 2000 rpm, we feel a series of fall and rises in performance in rapid succession, accompanied by a wheezing sound, so we back off the use of the throttle for a moment. This can be encountered within the first 0.5 mile on a slight downhill run, and then moving away from a junction. As the journey time increases and the engine warms up all seems to be ok. Maybe after about 7 or 8 miles when driving up a long hill/dual carriageway, the engine enters "limp mode" with throttle down at about 65-70mph. So I stop, switch off and start up again after a few seconds, and driving is ok for the remainder of the day. If I don't stop, the car lacks power and very slowly builds up speed. I did decide to change all air and fuel filters when I found two were clogged even though it was supposed to have been serviced by a main agent. That made a noticable difference. Could oil lines to the turbo be clogged and need replacing? Any further suggestions please. I have also just noticed that the temperature gauge is rising and falling, and it sometimes drops back to zero when on the move. The coolant sensor unit seems to be easy to replace, but just need to make sure it's the right one. Could these two issues be related? Thanks in anticipation of your help.