Weird sound on acceleration

[fillmore]

This sounds bad. Are you sure it's not detonation (pinging)? This is exactly what it sounds like. Like balls being shaken in a can. If that's what it is the engine may not last much longer if it keeps up.

Could be a bad batch of fuel?
Are you running 98octane?
Is it worse on hotter days? (maybe hard to find a hot day as it's winter now )

I'd get it checked out ASAP.
Can't believe others say they get It too because if it's pinging that is REALLY bad for the engine

First started making this sound at around 2k. Now done 43k. Always use BP Ultimate except for the odd occasion I have used Optimax. May be detonation but sounds more mechanical.
Good point about the warmer weather though. Might be why I haven’t heard it recently. And cktsi is right about getting the dealer to experience the issue. Very hard to replicate when it is so intermittent. Your suggestions didn’t work for me.
Also had this log recently
Chassis Type: 1K0
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72 76

VIN: WVWZZZ1KZ9U018000 Mileage: 41900km/26035miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Sporadic communication error 1000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine (CAV) Labels: 03C-906-027-CAV.clb
Part No SW: 03C 906 027 BA HW: 03C 906 027 F
Component: MED17.5.5 G 5860
Revision: L1H08--- Serial number: VWX7Z0H73NC8Z7
Coding: 0000077
Shop #: WSC 30061 959 93512
VCID: 61C392CAB8528B1

3 Faults Found:
049409 - No Communication with Transmission Control Module
U0101 - 000 - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 5
Mileage: 1048575 km
Time Indication: 0
Date: 2111.15.31
Time: 31:63:63

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 70.0°C
Temperature: 38.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 12.065 V

000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 000 - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
Mileage: 41864 km
Time Indication: 0
Date: 2000.00.00
Time: 22:46:34

Freeze Frame:
RPM: 3455 /min
Load: 94.1 %
Speed: 39.0 km/h
Temperature: 48.0°C
Temperature: 11.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.478 V

000769 - Cylinder 1
P0301 - 000 - Misfire Detected - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
Mileage: 41864 km
Time Indication: 0
Date: 2000.00.00
Time: 22:46:34

Freeze Frame:
RPM: 3455 /min
Load: 94.1 %
Speed: 39.0 km/h
Temperature: 48.0°C
Temperature: 11.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.478 V
Misfired under acceleration from lights and fault in exhaust system light flashed for about 5 seconds.
Dealer reflashed ecu and reset code errors. Customer to trial. Also have fuel consumption increase of about .5lt per hundred. Have extended warranty so going through those channels to have issues resolved. Hoping I can have a trustworthy car by the time this expires as I’m planning on keeping it. All suggestions for a resolution appreciated.

[rockDAhouse]

Hi dieterbohlen (best user name ever btw)

Take it to the dealer and drive around with the head mechanic to demonstrate the sound.
I have done the same as I had all sorts of weird noises (clunck, shutter, pinging). I have over the course of 1 year replaced the waterpump, clutchpack, mechatronik and a new gearbox (all under warranty). The dealer was actually quite keen to get all my problems sorted. I assume its good money for them when they recharge VAG for the warranty work. The car is currently in the shop for a not engaging park brake when in "P", the pinging noise when accelerating and rough idle at startup.

Again, if you need something checked out and fixed the dealer is you best bet. And yes the 7speed is quite noisy when changing gears.

Cheers,
regu

which dealer did you go to? sounds promising

[RW1]

Address 01: Engine (CAV) Labels: 03C-906-027-CAV.clb
Part No SW: 03C 906 027 BA HW: 03C 906 027 F
Component: MED17.5.5 G 5860
Revision: L1H08--- Serial number: VWX7Z0H73NC8Z7
Coding: 0000077
Shop #: WSC 30061 959 93512
VCID: 61C392CAB8528B1

3 Faults Found:
049409 - No Communication with Transmission Control Module
U0101 - 000 - - Intermittent


000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 000 - - Intermittent


000769 - Cylinder 1
P0301 - 000 - Misfire Detected - Intermittent

All suggestions for a resolution appreciated.

I suggest you note 049409 fault as some of the data does not align. It may be spurious. Then clear it down with the rest when the problem is found and fixed.

The two misfire fault codes..... look in No.1 cylinder for a poor spray pattern from the injector. The Spark Plug will either be normal like No.2, 3, & 4 or be very metal clean. And also look for a shiney patch on the piston crown. If a metal clean spark plug or shiney patch, that points to a injector spray pattern. This would also be accompanied with a lumpy idle when warm.

If not that, given you have 24s4 ECU standard firmware G5860, the spark plugs may be too widely gapped. Spec is 0.8mm - 0.9mm. The engine is best run at 0.7mm but VW's NGK plugs were originally supplied as gapped at 0.9mm under part number 101 905 626. Even with 24s4 loaded, misfiring is still murmuring away and occasionally is full blow like above. The revised plugs are 0.8mm and VW do not gap a plug on fitting. It helps at 0.8mm but it is much better from experience of 2 years driving with it set at 0.7mm.

I would doubt it being the coil pack in this case.

You don't have the latest 24s4 issue at G5860 but subsequent updates to 9660 for the DSG version are for a cold start warm-up misfire as coolant temp passes 35'C when in very dry air conditions leading to over weak mixture misfire with wide plug gaps. The other is an engine prolonged warm up time in temperatures below 5'C. So neither needs to be in place unless the engine is experiencing the problems. I run G5860 with 0.7mm plug gap and have had no engine problems for the last 2 years. Never coughed once, even in extremely dry air conditions (humidity below 20% with air temps above 15'C) which before the plug gap reduction it did misfire at 35'C coolant temp.

BTW the dealer hasn't reflashed the ECU as your VCDS readout would have shown firmware 9660 above unless the above is a pre dealer visit VCDS Autoscan record.

[fillmore]

BTW the dealer hasn't reflashed the ECU as your VCDS readout would have shown firmware 9660 above unless the above is a pre dealer visit VCDS Autoscan record.[/QUOTE]

Thanks for your reply RW1. The scan is a pre dealer visit scan and is now running firmware G 9660, which from your post should help cure the misfire as it did occur during warm up. Interesting advice on the spark plug gap too.

[Rob Burns]

The 049409 - No Communication with Transmission Control Module is from when your campaign 37G7 was done. When the transmission control unit is reflashed it loses communication with the other control units. Basically the dealer didn't check for fault codes after the reflash or if they did they didn't delete them.

In other words, don't worry about it. The other faults are a bit of a concern though.

[Willo9891]

I ahve a 2011 103 TDI Golf after my first 5000k's I noticed this "paint can ball rattling" noise which is only heard with the windows up. I took it to the dealer and took them for a drive but of course the sound wasn't there or it was barely there. So they had a look at it and they told me it was the high pressure fuel pump and was normal. It is on and off and sometime when in the higher rev rang around the 3-4K mark it is quite loud. I have had them look at it a few times but they say there is no fix for it. The car has done 55000k's now and still happens every now and then.

I also get the ticking noise like a plastic ticking whilst driving in low rev range and can only hear it with the windows down and whilst driving near something for it to echo off. Was also told this was normal. Not sure what to do about this as I kept getting told it is normal.

[fillmore]

The 049409 - No Communication with Transmission Control Module is from when your campaign 37G7 was done. When the transmission control unit is reflashed it loses communication with the other control units. Basically the dealer didn't check for fault codes after the reflash or if they did they didn't delete them.

In other words, don't worry about it. The other faults are a bit of a concern though.

Thanks Rob. Also have fault code 01315 in address 17: Instruments and address 19: Can Gateway. Would these be related to the same issue, and as I have vcds should I clear the codes or leave it to the dealer? Due for another visit there in near future for fuel economy issues and clutch shudder. Thanks in advance.

[Rob Burns]

I wouldn't delete the fault in the Engine control unit as it will delete the other faults. The other control units it doesn't matter unless there are other faults. Seeing as though the dealer didn't check/delete them last time I doubt they'll check/delete them this time either.

[regu]

which dealer did you go to? sounds promising

Bill Buckle Brookvale

[sciroccoarne]

Great thread, finally someone else that share the same problem as me.
I've started to hear this ticking sound at 28k, and got pretty worried, even I have over 3 years on the warrenty.

The ticking sound is only apparing when in 1st or 2nd gear, and just after I press the throttle. The DSG has also started to act funny, and I feel something is wrong with the clutch, or something is loose under the right wheel. There has been no damage to the car whatsoever.
I took it to the dealer, and a technician tried it. He could hear the ticking instantly, and we also noticed a metal sound when driving over bumps.
He could confirm something was wrong, and 30 minutes later he showed me a print from VW (he also said this shouldn't be shown to the public..) with a known problem regards to the ticking sound, and apparently it was caused by the DSG. The error code (fault) was 2026473/2. Anyone have any information abount this fault code? Could a firmware upgrade fix this, or is it a mechanical problem?

The dealer confirmed there was no firmware updates to my car whatsoever. I also found this a bit strange, as it's a 2011 (ordered oct 2010) Scirocco on its first service (30k), so I would expect some upgrades (e.g. Navi, DSG, TCS, etc.).


Hope you can ease my pain and tell me it's a warranty problem, so I don't have to drive around embarrased bacause of this sound. I paied 100k AUS dollars for this (in Norway), so it shouldn't sound like that.

Thanks

[RW1]

The ticking sound is only apparing when in 1st or 2nd gear, and just after I press the throttle. The DSG has also started to act funny, and I feel something is wrong with the clutch, or something is loose under the right wheel. There has been no damage to the car whatsoever.
I took it to the dealer, and a technician tried it. He could hear the ticking instantly, and we also noticed a metal sound when driving over bumps.
He could confirm something was wrong, and 30 minutes later he showed me a print from VW (he also said this shouldn't be shown to the public..) with a known problem regards to the ticking sound, and apparently it was caused by the DSG. The error code (fault) was 2026473/2. Anyone have any information abount this fault code? Could a firmware upgrade fix this, or is it a mechanical problem?

Bulletin 2026473/2 is October 2011. So its missing if you have the noises. Reprogramming of the DSG ECU is required to recognise rough roads like cobbled surfaces. Results in quicker gear changes so on rough roads the rattle/clatter is less and no clutch adaption happens . Owners usually confuse this update with the effects of 37G7 campaign, it just gets loaded when 37G7 is done because the latest firmware also has previous updates such as 2026473/2.

There are no warrenty instructions as its regarded as normal. No instructions to update the DSG ECU separately for 2026473/2.

[sciroccoarne]

Bulletin 2026473/2 is October 2011. So its missing if you have the noises. Reprogramming of the DSG ECU is required to recognise rough roads like cobbled surfaces. Results in quicker gear changes so on rough roads the rattle/clatter is less and no clutch adaption happens . Owners usually confuse this update with the effects of 37G7 campaign, it just gets loaded when 37G7 is done because the latest firmware also has previous updates such as 2026473/2.

There are no warrenty instructions as its regarded as normal. No instructions to update the DSG ECU separately for 2026473/2.

Thanks RW1, if I understand you correct - the smart thing would be to send a request to the shop tomorrow and ask for an DSG ECU upgrade to version 37G7, and hopefully that will fix it. A second workaround is to shut the windows of course..

[RW1]

Thanks RW1, if I understand you correct - the smart thing would be to send a request to the shop tomorrow and ask for an DSG ECU upgrade to version 37G7, and hopefully that will fix it.

Yes its one way but as with my October 2009 build, the DSG may not be targetted for 37G7 so it may not be accepted as part of 37G7 worldwide campaign and therefore warranty costed.

[will86_]

I had this rattle on acceleration on my manuals golf gti. Dealer fixed it under warranty. Never asked what the problem was but was advised it was common in the golf mk6's. Ask your dealer, I'm sure they know what's causing it.
As for the shuddering upon acceleration, it could one of your coils are dying. Have it checked and replaced before it gets inevitably worst.