VW Polo - 2016 issues (possibly carburetor?)

ColG

Hi all,

We have a new 2016 VW Polo giving us some unusual issues.

Firstly the car is making an unusual ticking sound when you open the bonnet (unable to hear with bonnet closed)

Secondly the main problem is that the car does not seem to pick up when you need it too. to test this out i parked the car up and put the foot to the floor just to check the revs and noticed that revs never went passed 4 ( would expect it to hit the red) at all and then after 20 seconds or so the revs would just drop completely as if you didn't have your foot on the accelerator at all even though it was to the floor, but the car would not cut out.

Anybody have any idea what this could be?
The car is under warranty and i will bring it into the garage on tuesday when they open back up but in the meantime would be very interested to see does anyone have any idea what this is?

Apologies for my lack of car knowledge!
Thanks!

JamboMac

ColG wrote: »

Hi all,

We have a new 2016 VW Polo giving us some unusual issues.

Firstly the car is making an unusual ticking sound when you open the bonnet (unable to hear with bonnet closed)

Secondly the main problem is that the car does not seem to pick up when you need it too. to test this out i parked the car up and put the foot to the floor just to check the revs and noticed that revs never went passed 4 ( would expect it to hit the red) at all and then after 20 seconds or so the revs would just drop completely as if you didn't have your foot on the accelerator at all even though it was to the floor, but the car would not cut out.

Anybody have any idea what this could be?
The car is under warranty and i will bring it into the garage on tuesday when they open back up but in the meantime would be very interested to see does anyone have any idea what this is?

Apologies for my lack of car knowledge!
Thanks!

Pretty sure no car these day's has a carbereur, everything is controlled by ecu. Gets info lambda's which tell it about fuel richness and so on. To me feels like the engine is in limp mode and trying to protect itself from further damage. I assume oil levels and so on are fine.

ColG

JamboMac wrote: »

Pretty sure no car these day's has a carbereur, everything is controlled by ecu. Gets info lambda's which tell it about fuel richness and so on. To me feels like the engine is in limp mode and trying to protect itself from further damage. I assume oil levels and so on are fine.

Oil levels all good!
Also no warning lights on dash or anything of the sorts.

Atlantic Dawn

Is it petrol or diesel, what kind of miles are on it? If petrol it could possibly be coil pack but unless there's heavy miles on it I would doubt a coil pack would fail within year 1. Does the car have AC and is AC on when you hear the ticking noise?

I recall a post here a while back about I think a Polo where car would not rev above certain amount in neutral and this was normal, I could be wrong on though.

ColG

Atlantic Dawn wrote: »

Is it petrol or diesel, what kind of miles are on it? If petrol it could possibly be coil pack but unless there's heavy miles on it I would doubt a coil pack would fail within year 1.

I recall a post here a while back about I think a Polo where car would not rev above certain amount in neutral and this was normal, I could be wrong on though.

Petrol, Only 18k on it.

Really? Maybe thats the reason?

But the reason i tested it was because i was on the M50 and the car would not pick up at all so much so that i had to pull into the slow lane. Foot to the floor and wasnt gaining any speed.

Atlantic Dawn

ColG wrote: »

Petrol, Only 18k on it.

Really? Maybe thats the reason?

But the reason i tested it was because i was on the M50 and the car would not pick up at all so much so that i had to pull into the slow lane. Foot to the floor and wasnt gaining any speed.

If it's the coil pack you would normally have the engine management light on though and also have rough vibration at idle and driving.

ColG

Atlantic Dawn wrote: »

If it's the coil pack you would normally have the engine management light on though and also have rough vibration at idle and driving.

No warning lights and seems to drive fine as it has all year apart from when you ask it to pick up it just seems to hesitate, and very badly 2 days ago on the M50 when it gave nothing at all - had to change down gears to eventually get it moving.

Mech1

it wont rev out when your stopped, its intentional rev limiter i would think.

ColG

Mech1 wrote: »

it wont rev out when your stopped, its intentional rev limiter i would think.

Interesting! Thanks for that!

But wouldnt really explain why it wouldnt pick up at all the other day and the unusual noise coming from the engine when you open the bonnet?

Toyotafanboi

Mech1 wrote: »

it wont rev out when your stopped, its intentional rev limiter i would think.

Yeah, they are electronically limited at idle. Press and hold the ESP button and you can rev it all the way to the redline at idle.

The ticking could be a multitude of things. Being 2016, just bring it back to the dealer and get an opinion?

colm_mcm

Ticking could just be injectors doing their thing.

kona

The engine is protected electronically from people revving the ****e out of it when idle.

The ticking is likely to be injectors, but bring it to a mechanic it may be something wrong which needs attention.

What engine is in it? The car may just have no power, or the delay could be the electronic throttle, perhaps your last car had a throttle cable. You could be just used to a throttle cable and not a electronic throttle which has a slight delay compared to a cable throttle.

ColG

kona wrote: »

The engine is protected electronically from people revving the ****e out of it when idle.

The ticking is likely to be injectors, but bring it to a mechanic it may be something wrong which needs attention.

What engine is in it? The car may just have no power, or the delay could be the electronic throttle, perhaps your last car had a throttle cable. You could be just used to a throttle cable and not a electronic throttle which has a slight delay compared to a cable throttle.

Thanks for the insight!

The car is just not picking up the same as it was 2 months ago. I have again brought it out tonight to try and see can replicate the problem that i encountered on the M50 and i have managed to do so. An hour ago on the N7 same thing happened again, foot to the floor and the car found nothing, wasnt gaining anything at all. only way to gain was to change down gear (aka take foot off of accelerator) and then it picked up as normal.

I have googled the noise and few people have mentioned tappets - would that make any sense?

rocky

What engine is in it, and at what rpm are you foot to the floor? Maybe it just lacks power.

Special Circumstances

ColG wrote: »

, foot to the floor and the car found nothing, wasnt gaining anything at all. only way to gain was to change down gear (aka take foot off of accelerator) and then it picked up as normal.

Wat

ColG

rocky wrote: »

What engine is in it, and at what rpm are you foot to the floor? Maybe it just lacks power.

Its only a 1 litre. not sure of the engine after that. the rpm never goes above 4 on the gauge. no matter how hard i try.

i know its not a powerful engine but its never been this ineffective before.
Its literally finding nothing.

Tonight for example 75km/h foot to the floor would not go 1km/h faster. actually dropped speed until i changed gear then it started to gain again.

ColG

Special Circumstances wrote: »

Wat

Worded badly!

5th gear 75km and would not move from there. had to change down to 4th gear for the car to gain speed then change back to 5th.

Would it be possible that the engine is not getting enough fuel once the accelerator is pressed for a certain amount of time?

mullingar

75kph max?

It's in limp mode on reduced power. Book it into your nearest vw dealer.

Neilw

I would have thought 5th gear at 75kph wouldn't have much pickup in a 1 litre car, I'm sure the revs would be fairly low and the lack of torque from the 1 litre engine may not be enough to get it going.

The engine should easily rev to the limiter in the lower gears, have you tried using a lower gear and more revs?