Polo Problems & Fix Register

[bvenz29]

MAKE: 2006 Polo GTI 9N3
KMS: 104,000
CAR USAGE: Daily
PROBLEM:

Hi guys, been having a few problems with my Polo for a while now.
Basically at the moment the car has a loud screeching noise under high throttle (I suspect a boost leak but hey I'm no expert). Additionally, the turbo does not seem to be spooling up as quickly as it used to. For example, when I first purchased the car, gentle acceleration in 2nd gear would have the turbo spooling up nicely - could hear it very prominently over the engine noise. Currently you can't hear the turbo spooling at all all the way through 2nd gear (almost to redline) but I do get the horrible screeching noise. The same is true for almost all driving situations EXCEPT putting it into 5th at say 80km/h and applying half throttle, you can hear the turbo spooling nicely. Sometimes low to medium throttle in 4th gear at medium speeds (say 70-80km/h) will have the turbo spooling nice and smooth.
FINALLY, the car seems to have a very subtle misfire at idle. Sitting at the lights the car will be idling at say 750/800RPM, then sporadically drop about 50-100 RPM and pick up again. I'm not sure if this occurs at a regular intervals. I can only describe it as an occasional stutter in the idle.

Any thought on what could be wrong with my beloved Polo? I've done a heap of research and can't find much.
Appreciate your help guys
PS: I hope I've put this in the correct section and format. I'm a forum newbie
Cheers

[sschen]

Flat Battery

MAKE: 2007/8 Polo GTI 9N3
KMS: 65,000
CAR USAGE: Once a week
PROBLEM:

Guys, my Polo refused to start a couple of days ago and putting a multimeter across the battery terminal was showing less than 12V ( I can't remember the exact figure ). So I put a battery charger (with the battery terminal still connected to the car electrical system) across the battery terminal to charge it overnight. But the battery charger "charging" indicator has gone off when I checked this morning and the battery is still not fully charged. I thought that perhaps my battery charger is faulty so I borrowed another charger from my in law (he had the exact one as mine) but his battery charger is doing the same thing. I went out a couple of hours ago and when I got home, the battery charger is no longer charging the battery.

At the moment, the battery is showing 10.8V and the car won't start with such low voltage.

I have only owned this Polo for six months so this is all very new to me. I have always owned Japanese cars in the past but none with such sophisticated electrical/electronic system. Perhaps I should have asked this question a couple of days ago. Is it okay to charge the car battery with a "normal" battery charger???

I hope it is just a dead battery, and not something worse.

Any suggestion will be appreciated.

Thanks in advance!

[Stuwey]

Sounds like a dead cell in the battery to me!

[sschen]

Sounds like a dead cell in the battery to me!

Thanks, it does seem that way.

I managed to get the car started yesterday. With the car started, I am observing >14V when testing with a multimeter over the battery terminals so the alternator must be fine. I drove the car out for nearly an hour thinking it should charge the batttery. When I came back and stopped the car, the car won't start again and the battery voltage is showing less than 11V again.

What brand batteries and capacity do u guys use for a Polo GTi?

[seangti]

Thanks, it does seem that way.

I managed to get the car started yesterday. With the car started, I am observing >14V when testing with a multimeter over the battery terminals so the alternator must be fine. I drove the car out for nearly an hour thinking it should charge the batttery. When I came back and stopped the car, the car won't start again and the battery voltage is showing less than 11V again.

What brand batteries and capacity do u guys use for a Polo GTi?

I think it's a min 200cca, check what you currently have or ask at a battery shop and they'll provide what's required. Yup, sounds like a dead cell.

[Stuwey]

What brand batteries and capacity do u guys use for a Polo GTi?

Unless you're building a track-hack lightweight special, stick with OEM specs.

[Dave_MY15_R]

The alarm problem could be a battery problem

[Necrolust]

MAKE: 2008 Polo GTI 9N3
KMS: 72,000
CAR USAGE: Daily
PROBLEM: Passenger windows don't work using their respective switches on the doors(s). I can control the passenger side windows from the drivers control panel fine. Sometimes when I first start the car the front passenger window will wind itself down and cannot be controlled at all until I turn the car on/off again

[Julzaac]

Does Anyone know how to lock this 9N3 Polo without turning on the alarm?
Can’t afford to have the alarm go off again tonight

thanks in advance.

Behind passenger seat theres a button to disable motion sensor. Click that before locking

[kaanage]

Door open/closed sensors

Has anyone had to replace or repair one of the door open/closed sensors?

The one in my passenger front door doesn't sense that the door is open so if I unlock the car and then open only that door, after a minute, the car will relock itself and the alarm goes off

From what I have found on MkIV Golf posts, there is a microswitch in the lock mechanism which will be the culprit.

[Slow_Polo]

Mine has the exact same problem kaanage! The guy i bought it from said it has had the issue for ages and VW wanted in the range of $700 to fix it.

Have a read of this page: VWVortex.com - MKIV door locks explained - why you're having problems!!!

I haven't got around to checking mine out yet but hoping this simple fix will solve it.

Luke

[kaanage]

Yeah, that was one of the MkIV threads I looked at while investigating the issue.

Of course the problem decided to go away on the weekend....

[PULS8T]

Hey all,

After installating my forge intercooler my car seems to be running rich. Less fuel economy and can smell unburnt fuel. Not sure if its related to the cooler being done or if it could be something else. Not sure where to start looking

Thanks

Sent from my SM-N920I using Tapatalk

[seangti]

Hey all,

After installating my forge intercooler my car seems to be running rich. Less fuel economy and can smell unburnt fuel. Not sure if its related to the cooler being done or if it could be something else. Not sure where to start looking

Thanks

Sent from my SM-N920I using Tapatalk

I don't look in here often, can you log the car to confirm what it's doing? Check fuel trims (block 031 in VCDS if I recall correctly) and other fuel parameters. My silver car used to use more fuel, yet once logged found it was running very lean, go figure. Have since retuned, spot on logs and better economy.

[FourVW]

Hi
Have recently purchased a 2011 Polo with 79klms on it, its a comfortline model with 17" VW alloys fitted and dsg. Have had the timing chain issue and got warranty on that 100% parts and 70% labour while the car was there I had the 75K service done. Went to pick up car and service manage wants to show me an issue with the transmission. He says that the transmission shift pattern is out of spec, but it tests electrically as OK. Then he shows me the centre of the gearbox casing and points to an oil weep/leak and that the gearbox has been opened and resealed. He says that the seam sealer thats barely visible is proof. I'm smelling BS as he says that no VW dealer would ever open a DSG gearbox, if they have a fault they are sent to Germany for repair, dealers only fit complete gearboxes they have no manuals or training on gearbox disassembly and repair.
I had reported strange **** behaviour at service time. Basically at low speeds the car surges, and reversing up my short moderately steep driveway, at low speed, it will lose all power and roll forward.
On the road under hard acceleration shifts seem fine, but uphill and turning right there is a shudder.
Low speed gear changes there is a definite metallic clunk from 2nd to 3rd.

Seems like I have a dodgy transmission, car is out of warranty, but the timing chain issue was fixed as I told them about ACCC and fit for purpose, and I now own 4 Vw's (if that made a difference is unknown).

Is there a known issue with the trans on this model, seems like there is? The service records showed that the previous owner had reported a shudder and I had paperwork that showed that a VW dealer checked the transmission and replaced both clutch packs as they were "out of spec". That paperwork has gone missing since we got the car back, but I reckon I could get a reprint as we know the rest of the service history.
The dealer has said they are putting in a claim to VW on our behalf about the transmission, and we will be notified this week about the outcome, but the dealer was hinting that the gearbox had been opened by someone other than a VW dealer, which sounds like a way out if VW deny warranty on the trans?
The car is immaculate and had one previous female owner, only some small scuffs on the rims and a couple of tiny body blemishes, looks like a new vehicle.