Hi All, I am thankful for this forum and am hoping that someone will restore my faith in Diesel. I have a 2006 1.9 tdi jetta that has 126 000 km on the clock and is repeatedly going into limp mode. At 86 000 km I had to replace the turbo. At 100 000km the water pump & timing belt. And now at 126 000 km limp mode - Engine Warning light with the caption Emissions Garage. The car is extremely light on fuel but with all this maintenance and hassle I'm not sure if it is worth the saving. I took it to the dealer in Gaborone Botswana - I waited for over 1 month - They couldn't fix it. I have since taken it to 2 different mechanics for 1 month each respectively and they couldn't fix it. I find that if I don't exceed 2500 rpm through the gear change it doesn't go into limp that easily but before any trip is over it will experience limp mode and I must restart the car to get any performance out of it. Error codes I noted at last mechanic were P1643 & P0234 but the number of different possible causes is alarming. You would think that in this century the diagnostic report could be a little more closer to the actual fault. If the MAF or any other sensor is shot why doesn't the diagnostic just say which part is shot. It's been trial and error to no avail with lots of parts replaced. I have checked all fuses - no problems. One mechanic said I should remove the catalytic converter - done to no avail. I have seen the forum's post on Limp mode but am not a mechanic so a little lost. I am at my wits end - Just want a mechanic that knows what he is doing close to Gaborone Botswana Africa??. Any help or suggestions would be greatly appreciated. Thanks.