Gups Posted December 30, 2009 Report Share Posted December 30, 2009 hello all, i am not technical, so dumb it down for me , thanks Just want to thank you in advance for your help. I have a VW Golf GT TDI (115bhp), 2001 plate (mrk 4) For a while now i have experienced a loss of power. It has not got the same bite as it use to have. I drove my mates car (same model but a 2000 plate) and the power difference, between his and mine, is next level...my car would struggle to beat any car at any lights. On motorways it is really bad...whenever i hit a hill the car will struggle to get to 50/55mph. Even the simple every day hills it struggles. can some one help..... Link to comment Share on other sites More sharing options...
cruiser647 Posted December 30, 2009 Report Share Posted December 30, 2009 Hi Gups! The most likely culprit is the MAF. It's tells the engine the amount of air coming in. However, if it's duff, then it sometimes sends the car into limp mode where the turbo doesn't come on song. So, change that and you should see a difference. MAFs for the 115 PD are about £60 on exchange for a proper Bosch unit. Accept no other make! (very important) Go to your local GSF or VAG parts place and they'll get one for you. Will take about 5 - 10 mins max to change. It sits near the air filter in the engine bay. It makes part of the air pipe - so remove the big engien cover by tugging it up, unscrew the MAF housing on the air filter box, then with some good pliers, squeeze the jubilee clip thing and slid it over onto the air pipe. Unplug MAF, slid it off and replace. Make sure you do not let the jubilee clip thing loose, as you'll NEVER get it back on! I replaced mine and my turbo stays on song now. Other things - maybe a split boost pipe, but you'd still get turbo boost for a while until it registers something wrong. Other than that, is the car running OK? Hope that sorts it! Link to comment Share on other sites More sharing options...
Gups Posted December 30, 2009 Author Report Share Posted December 30, 2009 Thanks Cruiser. I will give that a go in next couple of days The car itself is running okay (for a car thats done 139k) Ppl say the turbo will go. how will i know when the turbo has gone? are there any tell tell signs? Link to comment Share on other sites More sharing options...
benjie Posted December 30, 2009 Report Share Posted December 30, 2009 I'd say 90% it's the MAF, very common problem. It's not your turbo, don't panic. They're bulletproof. I sold my golf with 175k on the clock on the original turbo, chipped for 75k. I know the bloke I sold it to and it's still running sweet. If the turbo goes - oil everywhere, now power, smokey as hell! Link to comment Share on other sites More sharing options...
Gups Posted December 31, 2009 Author Report Share Posted December 31, 2009 Thanks benjie. I will get the MAF fitted over the next of days and post up the results. Link to comment Share on other sites More sharing options...
cruiser647 Posted January 1, 2010 Report Share Posted January 1, 2010 My Bora PD has 190K miles, turbo is still whistling now as it did when we got it at 85K! You really need to ignore some doom mongers! Link to comment Share on other sites More sharing options...
Gups Posted January 6, 2010 Author Report Share Posted January 6, 2010 Thanks lads, got the MAF replaced and car is back to normal.... Link to comment Share on other sites More sharing options...
pinhead1000 Posted January 9, 2010 Report Share Posted January 9, 2010 hi guys sorry to hack the thread i have the same probs with my 1.9 gt tdi t plate only i have some black smoke coming out of the exhaust now is that still down to the MAF many thanks pinhead1000 Link to comment Share on other sites More sharing options...
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