2000 rpm hiccup on new 2010 TDI

[ravenr6s1983]

Ive noticed on several occasions when im driving and the engine approaches the 1900-2000 rpm range, it hiccups, feels almost like a gas engine mis-fire. The car only has 250 miles on it. Is this just a normal characteristic of the common rail TDI?

 

[GGK]

Not on mine, isn't that about the rpm it shifts into 6th?

 

[XWAYZZ]

Ive noticed on several occasions when im driving and the engine approaches the 1900-2000 rpm range, it hiccups, feels almost like a gas engine mis-fire. The car only has 250 miles on it. Is this just a normal characteristic of the common rail TDI?

I'm going to agree with you on this one. I have also felt this fuel issue, in particular when the engine is cold. Its almost as if had a MAP issue. I know have 3k on it and it seems to have gone away...somewhat!

 

[ravenr6s1983]

i forgot to mention its a MTM

 

[Phoking]

Happened to me a few tanks ago, but hasn't reappeared since I started using a better station to buy my diesel from. I chalked it up to a bad tank of diesel.

 

[MayorDJQ]

It's not a fuel quality issue. It's the EGR flappers actuating. Just accelerate through 1900 RPM briskly when restarting after a brief shutdown.

Search the word hiccup in the A5 forum.

 

[JSWTDI09]

This sounds a lot like the "shudder" problem that the '09 models have. There are several threads about this here and this is the longest (& best).

http://forums.tdiclub.com/showthread.php?t=228411

Do you have a DSG or a manual transmission. I ask because here seems to be two different (and unrelated) problems that are often confused.

1) With a DSG there is a hesitation (or miss) that occurs when cresting a hill. I know of no fix for this one - it's just the way the engine controller and DSG controller work together.

2) With manual or DSG, there is an issue that feels like a misfire or hesitation that happens between 1800 and 2000 rpms only when you are accelerating very slowly (not much accelerator pedal). For '09 models there was an ECU update (for an OBDII bug) that helped a little, but it still happens occasionally, but not as severe. I suspect (or hope) that this ECU update was included in the 2010 models. Anyway, the best real "fix" I have heard of for this problem is simple - it's just a matter of adjusting your driving style. Since this problem only occurs when accelerating very gently through this rpm range, just give it a little more "gas" and accelerate briskly through this 1800 to 2000 rpm range. If it is the same problem, this should pretty much make it go away. Many people have complained to their dealers about this issue, but most dealers are clueless and VWoA has refused to admit that there is a problem.

Have Fun!

Don

 

[rix337]

As far as I know they all do this when they are at about half warmed up. I was told it was the ecm switching from a closed-loop to open-loop(or vice-versa) on cold start-ups. The ecm changes from a preset set of parameters to using the sensor readings for fuel and what not. I went in to my dealer and he did a software update on my ecm, and this hiccup went away for a month or so, but is now back. I am usually on a 1-2% downgrade as I reach 2000rpms in fourth gear when this happens on my normal route. Doesn't matter how cold or warm it is outside, always the same. Just a quirk of the 2.0 I guess.

 

[Hondroid]

My 2011 Golf TDI is one week old and this has happened to me in the morning within the first 2 minutes of driving. A slight loss of power around 2000 rpm.

It has always occurred when the engine is cold, sits over night.

I guess this is still an ongoing issue….

 

[740GLE]

Many don't call it an issue more of a feature of keeping inline with the emissions requirement.

Everytime I notice it happening I don't think somethings wrong, i see it as the car's letting me know everything's working and it's normal condition. Would it be better if we never notice it happening, sure, but I think it's something I can live with, (well until there's a nice ECU tune matched with some mechanical alteration/deletion in the emissions equipment).

Dig around and find that PDF self study guid for the CRD, there is two EGR systems in these cars, very complex and sometimes it interferes with what many consider normal driving.

 

[benpfree]

Sorry to hijack the thread, but I am having some of the same issues with my 2005.5 jetta tdi. Can anyone help with this? I have read many of the threads but I can't seem to find any resolution or anyone with an 05.5 or 06 model that has resolved the problem.

My car surges/hickups when driving -- either accelerating moderately through 1800-2400 rpm or when steady cruising on freeway at those same levels. Sometimes going up a hill it is a bit worse, especially when the engine is held in one gear and has to be in that rpm range for a while. The engine hick ups like sucking a piece of food through a straw in the middle of a drink.
I have 89000 miles and I just had the major service done with timing belt, etc. That service didn't seem to make any difference to the issue.

Any help would be appreciated, thanks
Ben

 

[MayorDJQ]

Sorry to hijack the thread, but I am having some of the same issues with my 2005.5 jetta tdi. Can anyone help with this? I have read many of the threads but I can't seem to find any resolution or anyone with an 05.5 or 06 model that has resolved the problem.

My car surges/hickups when driving -- either accelerating moderately through 1800-2400 rpm or when steady cruising on freeway at those same levels. Sometimes going up a hill it is a bit worse, especially when the engine is held in one gear and has to be in that rpm range for a while. The engine hick ups like sucking a piece of food through a straw in the middle of a drink.
I have 89000 miles and I just had the major service done with timing belt, etc. That service didn't seem to make any difference to the issue.

Any help would be appreciated, thanks
Ben

Your's is a totally different problem as you have an entirely different engine.

You could have a dying lift pump, or you could have a warn camshaft. You should probably start your own thread.

 

[benpfree]

thanks. I just started a new thread on this issue.

 

[dr.zed]

This has been discussed since the CBE engine came out. For me its most noticeable when its cold, though it does happen lightly warm at light throttle tip in.

Its a characteristic of the car, and apparently some people have flashed the ECU with the "OBD driving update" some say its gone, some say its still there.

 

[Peytron]

I feel this occasionally with my DSG when cresting a hill. Always figured it was like every other automatic transmission.

 

[rad8tion]

Glad I'm not the only one who has noticed this...

 

[MayorDJQ]

I feel this occasionally with my DSG when cresting a hill. Always figured it was like every other automatic transmission.

This is another, different situation. This is what we've come to call the "Hill Cresting Flutter". The OP is talking about the "Warm-Up Hiccup".

The HCF is caused by the ECU rapidly fueling/defueling the injectors. It's especially noticable with the cruise control set, as most people tend to lift up a little on the accelerator when cresting a hill.

There's a way to test it. If you find that it happens everytime you crest a certain hill at a certain road speed, say 55mph and 1900RPM, try driving over the same hill at 55mph but in a lower gear, say 4th, so that the RPMs are higher. It probably won't feel as dramatic at the higher RPM.

 

[zhills]

I have had this same hiccup happen to me now four or five times on my new 2010 Jetta TDI, Happens mostly after running the car a short distance, exiting the car, returning to the car and start driving again, that is when it has happened four times, somewhere in 2nd or 3rd gear, only for about half a second. I mentioned it to the service rep that I deal with at Brandon VW. FL. and he noted it on my service file. at my courtisy checkup. But told me afterwards that they could not duplicate the incidents. and to let him know if it continues. I have 4730 miles on the car.

 

[MayorDJQ]

I have had this same hiccup happen to me now four or five times on my new 2010 Jetta TDI, Happens mostly after running the car a short distance, exiting the car, returning to the car and start driving again, that is when it has happened four times, somewhere in 2nd or 3rd gear, only for about half a second. I mentioned it to the service rep that I deal with at Brandon VW. FL. and he noted it on my service file. at my courtisy checkup. But told me afterwards that they could not duplicate the incidents. and to let him know if it continues. I have 4730 miles on the car.

It's easy to get it to happen. Set up another appointment. Arrive 20 minutes early. When they call your turn, take the service rep and a tech for a ride, but hold the RPMs at 1,800 in first gear for 30-60 seconds. You're 90% gaurranteed it will happen.

But....try it out a few times before making the appointment.