my 07 2.0tdi 170 dsg shudders badly from cold starts in winter, new battery helped a bit, must check the glow plugs...
Engine judder on startup only
- Thread starter leecool
- Start date
I'm ressurecting this thread. I have exactly the same problem, i own a 2.0 TDI bmn 170hp.
Have also replaced the battery that improved starting judder/shake in 50% but its still there. Did anyone solved this without messing with ECU?
Thanks!
Have also replaced the battery that improved starting judder/shake in 50% but its still there. Did anyone solved this without messing with ECU?
Thanks!
leecool
Registered User
Hi, I originally posted this thread. No cure so far Audi don't have a freaking clue what to do about it! I wrote to head office in Germany & stated my claims. The answer I got was "we at Audi have not heard of this issue so we are unable to help at this time. F**K off Audi you lying bunch of C***s. You just don't give a ****!!!!!!!!!!!
leecool
Registered User
I haven't heard about this potential fix, but I've wasted too much money on Audi. Had a new cv joint put on a month ago & now the steering light is on! The only fix for this is a new steering rack. Beware, Audi's are like fine porcelain, nice to look at but brittle as F**k and not worth the stress. I now hate audi more than I can say! Creepy outfit who will do nothing to help unless you have very deep pockets. Getting rid of mine!
Did you try cleaning EGR valve and/or anti-shudder valve (sits below EGR) ? I'll do this this weekend or next and report back.
Does anyone have also strong smell from exhaust when idling? Trying to find if it's related...
Does anyone have also strong smell from exhaust when idling? Trying to find if it's related...
I wrote on the first page that I also had this problem with my DSG BKD A3.
Ince than I've replaced the starting motor witha brand new one, deleted the EGR completly, changed the battery, changed the tandem pump, changed the in-tank pump, did the hot start fix.
The juddering at start, both cold and warm, are still there but not as often and violent as before.
In a few months the time will come to change the oil to the gearbox. If I'll manage to raise the money, I'll also change the flywheel and engine mounts.
Though, the fact that the judder doesn't happen every time, makes me think that it has something to do with the fueling. More precisely, the fueling map at start doesn't cover enough situations and probably the ecu doesn't konw what to do when combined a certain temperature of the air, oil temp, coolant temp, fuel temp, air pressure etc.
Ince than I've replaced the starting motor witha brand new one, deleted the EGR completly, changed the battery, changed the tandem pump, changed the in-tank pump, did the hot start fix.
The juddering at start, both cold and warm, are still there but not as often and violent as before.
In a few months the time will come to change the oil to the gearbox. If I'll manage to raise the money, I'll also change the flywheel and engine mounts.
Though, the fact that the judder doesn't happen every time, makes me think that it has something to do with the fueling. More precisely, the fueling map at start doesn't cover enough situations and probably the ecu doesn't konw what to do when combined a certain temperature of the air, oil temp, coolant temp, fuel temp, air pressure etc.
I had a few coolant leaks, all sorted. The coolant level has remained constant.
I was loosing coolant rom the egr cooler, the front radiator and the water pump.
I've deleted the entire egr system and the radiator which was coroded at the bottom at the right side of the car.
The rate I was losing coolant has dropped but it was still happening. Only when i did the cam belt change, I've also changed the water pump which stopped it completely unil today. I hope it stays that way.
For peace of mind I've also changed the two big hoses coming out from the radiator.
So, with my car it isn't a case of cracked head leaking into the cylinders.
I was loosing coolant rom the egr cooler, the front radiator and the water pump.
I've deleted the entire egr system and the radiator which was coroded at the bottom at the right side of the car.
The rate I was losing coolant has dropped but it was still happening. Only when i did the cam belt change, I've also changed the water pump which stopped it completely unil today. I hope it stays that way.
For peace of mind I've also changed the two big hoses coming out from the radiator.
So, with my car it isn't a case of cracked head leaking into the cylinders.
hollows wife
Registered User
still to me sounds like a timing issue . needs to have timing retarded slightly ,sounds like its advancing too much when cold .
Mujnu
Registered User
I too want to know what the solution to this problem is. I've got a 1.9tdi BKC and have the same issue, have had the hot start fix but no luck. I get the violent judder when car is warm.
Mujnu
Registered User
Mine turned out to be a flywheel issue. Had it changed under warranty and so far no judder through the gearbox hopefully its solved.
I think I have the same problem. I have a TT 1.8T
After I start my engine, it's shudders as if it's about to stall and at the same time the revs go down to around 500rpm then back to 1000rpm. It'll do this for a minute or two and even when I start driving. Once it clears it drives perfect.
Seems to me like it's struggling for air. After reading the post about the air intake manifold flap, this sounds most logical. If the flap isn't opening properly it'll choke. Although this is designed to cut the engine when stopped, it could be the start up problem also if it doesn't open back up properly.
Any suggestions? Does this sound right?
After I start my engine, it's shudders as if it's about to stall and at the same time the revs go down to around 500rpm then back to 1000rpm. It'll do this for a minute or two and even when I start driving. Once it clears it drives perfect.
Seems to me like it's struggling for air. After reading the post about the air intake manifold flap, this sounds most logical. If the flap isn't opening properly it'll choke. Although this is designed to cut the engine when stopped, it could be the start up problem also if it doesn't open back up properly.
Any suggestions? Does this sound right?
our 1.9tdi has been having this issue over the last year or so, just had the clutch replaced and its still there (if anything worse than before) - the car drives great but seems lethargic turning over, does feel like a timing issue but will replace the starter and battery next and see if its any better
leecool
Registered User
I still have the issue, I turn the key & get clatter clatter vvroom! hot, cold it don't matter! Nothing shown in diagnostics, nothing found when Audi had it ( all at lunch when my car was in I think) They would come out sucking their thumbs if they fell into a barrel of tits that lot, they got cleaner hands than my doctor)
Like trauma victims I live day by day, taking each day as it comes, not expecting too much, pushing forwards, I take baby steps n that!
WTF am I thinkin' ! Sell the f****n thing, job done!
Hope this helps!?
Like trauma victims I live day by day, taking each day as it comes, not expecting too much, pushing forwards, I take baby steps n that!
WTF am I thinkin' ! Sell the f****n thing, job done!
Hope this helps!?
Hi you guys, hope any of you can help me as I'm close to driving my A3 off a cliff!
I have a 2007 2.0 TDi Sportback 140bhp BKD engine. Not too long after owning the car which was bought April 2011, the engine developed a judder & rattle on startup just before it fires up. The car incidently drives flawlessly.
It was doing my head in so I took it into an Audi dealership after hearing horror stories that there were problems with certain injectors. They didn't tell me that only the 170's suffered from this oh - no!, yet they went ahead & did the diagnostic anyway costing me £107.50. Long story short, they said my EGR needed replacing. But on inspecting the printout it said no communication with EGR.
I was pointed in the direction of an Ex Audi mechanic who told me that the printout is wrong & the reason for the non comms of the EGR is because it is vacuum operated & not electronic like on some other models.Your EGR is fine he said.
Anyway, he turned the car over a few times & heard the rattle & felt the judder. He said it's your Dual mass flywheel, it's f**ked. So I got him to replace the flywheel & timing belt for me.
After a few start ups the fault started again! not so violent as before tho! I took it back to him & iterated that it was back. He said it could be the starter motor, on the 140's the armature windings can fail & give the starter motor a stop go - stop go type of rotation causing the starter to snatch at the flywheel. So I had him replace that also! When I had the car back he tested it over & over, in front of me & no judder.
Hoorah I hear you say!
Sadly no! The judder is still there, but only occasionally now & even less violent than the 2nd time. It really just does your head in!!!!
I'm £1070.00 to the bad & suicidal. Fair enough he came to my home with (Audi's own diagnostic laptop that he was loaned, sssh) he ran a diagnostic there and then. The only red flag was that my synphony stereo was not coded correctly, yet I've not had 1 problem with it Nothing, no faults at all!
I just do not know what to do now, I'm outa cash & outa ideas. What else can it be?
Please please can anybody help?
What about injector leaking into chamber or stretch bolts? Checked engine/gearbox mounts?
Definitely seem to be injector leaking.
Hi mate what was the final conclusion on this as I have the same problem and even after changing the flywheel and clutch twice? Do you know the brand you used for the flywheel? ThanksHi you guys, hope any of you can help me as I'm close to driving my A3 off a cliff!
I have a 2007 2.0 TDi Sportback 140bhp BKD engine. Not too long after owning the car which was bought April 2011, the engine developed a judder & rattle on startup just before it fires up. The car incidently drives flawlessly.
It was doing my head in so I took it into an Audi dealership after hearing horror stories that there were problems with certain injectors. They didn't tell me that only the 170's suffered from this oh - no!, yet they went ahead & did the diagnostic anyway costing me £107.50. Long story short, they said my EGR needed replacing. But on inspecting the printout it said no communication with EGR.
I was pointed in the direction of an Ex Audi mechanic who told me that the printout is wrong & the reason for the non comms of the EGR is because it is vacuum operated & not electronic like on some other models.Your EGR is fine he said.
Anyway, he turned the car over a few times & heard the rattle & felt the judder. He said it's your Dual mass flywheel, it's f**ked. So I got him to replace the flywheel & timing belt for me.
After a few start ups the fault started again! not so violent as before tho! I took it back to him & iterated that it was back. He said it could be the starter motor, on the 140's the armature windings can fail & give the starter motor a stop go - stop go type of rotation causing the starter to snatch at the flywheel. So I had him replace that also! When I had the car back he tested it over & over, in front of me & no judder.
Hoorah I hear you say!
Sadly no! The judder is still there, but only occasionally now & even less violent than the 2nd time. It really just does your head in!!!!
I'm £1070.00 to the bad & suicidal. Fair enough he came to my home with (Audi's own diagnostic laptop that he was loaned, sssh) he ran a diagnostic there and then. The only red flag was that my synphony stereo was not coded correctly, yet I've not had 1 problem with it Nothing, no faults at all!
I just do not know what to do now, I'm outa cash & outa ideas. What else can it be?
Please please can anybody help?
Hi mate
Did this actually solve it? What make flywheel did you use? I have had the Sachs brand replaced twice and same issue? All started when the original clutch and flywheel was replaced? Any help would be appreciated. Thanks
I have an Audi A3 2007 I replaced the clutch and flywheel twice (Sachs brand) due to this problem but still the same juddering upon start but only when it’s warm no issues on cold start and it clearly sounds like the flywheel.
I wonder if anyone used a different brand to Sachs and if that would solve it as don’t want another £600 being wasted.
Thanks in advance for any advice!
I wonder if anyone used a different brand to Sachs and if that would solve it as don’t want another £600 being wasted.
Thanks in advance for any advice!
