ASR cutting in, followed by a loud bang! Normal

[Ryan_R]

I've had the loud engine vibrating noise which made my passenger think the engine was about to fall out once or twice - yes the road was smooth and moist/greasy, and yes, I had put my foot on the 'noisy' pedal to move quickly.


*goes off to Google to learn more about 'axle tramp'*

[AdamD]

Fair - I meant traction control was potentially causing something to make a loud thump. Whether that is the axle tramp - maybe - but this is a new one to me. At least others have experienced it...

Traction control should not be causing axle tramp or other suspension-related thumps. It's going to retard the ignition, and/or apply the brakes, to reduce wheelspin, as Corey_R has pointed out. However, having said that, it's possible that the action of removing and then rapidly reapplying torque to the driven wheels (as would occur if you're hard on the power even while traction control is trying to keep things in check) is causing a lot of suspension movement/distortion, which in turn is giving an axle tramp-like effect.

AFAIK, real axle tramp (as applies to old-school leaf spring rear suspension) occurs when significant torque is applied to the driven wheels, causing the suspension to compress and distort, and as the suspension levels out it does so in a less smooth/linear manner than it would under no load, causing the excessive vertical movement (hopping) which in turn exacerbates wheelspin. The term is used to describe similar manifestations of the same problem (ie the wheel hopping under load), but the underlying cause of real axle tramp is suspension distortion under load. AFAIK.

[Ryan_R]

From the quick searching I did earlier - most complaints about this were either from older American cars, V8 Utes, and the Golfs. While the VW members said just back off the right pedal, the other forums had other recommendations regarding the suspension and bushes. Quite a bit of money can be spent in the area if it's a major problem, but someone said APR have a $100 insert which improves things, and one person just got the welder out and reckons he's fixed his problems.

If it's wet, I'll probably just take it easy until I get to 2nd gear, before requesting more torque.

[AdamD]

From the quick searching I did earlier - most complaints about this were either from older American cars, V8 Utes, and the Golfs.

I've had much worse apparent axle-tramp from my past three Hondas than I have from my Golf.

If it's wet, I'll probably just take it easy until I get to 2nd gear, before requesting more torque.

If you're in a GTI in the wet (especially a Pirelli or modified one), 2nd gear won't save you.

[Ryan_R]

Acceleration from standstill is sometimes less predictable in my car with APR and throttle adaption every ~60kms, so while full throttle in second gear might still cause the problem, it's easier to avoid (i.e. to pick the right amount of throttle) in my case.

[JonoB]

118TSI - wheels spinning creates violent noisy shudder

I was wondering about this bizarre symptom with my otherwise excellent Golf Mk6.

When accelerating from a standstill in the wet, or uphill, I can get a fair bit of wheel spin for 3 or 4 seconds until the car moves smoothly and traction control kicks in... nothing unusual there.

But what bothers me is that the entire cabin sounds like a bloody noisy drum while this happens.

Its as if the car is driving across an unsealed road at high speed and sounds like it would shake itself to bits.

I don't know if its my tyres (Pirellis) or the suspension, but I have a stock standard 118TSI DSG for a year now and its always behaved like this.

Should I take it to dealer ? Anyone else have this ?

[118TSI]

Ease up on the throttle, always happens if you give it a little too much of the go pedal

[KRA21E]

Hi,

If that noise occurs only when the wheels are spinning it could be axel tramping, quite common in front wheel drives.

The abs (also used for traction control these days) could also be making the noise which is also nothing to worry about.

Your tyres definately have an effect as it defend on the level of grip that they provide.

Hope this helps.

[manol]

Axle tramp, ease up on the go pedal.

[Brendan_A]

Sounds like the traction control working. Mine will make the same noise if I spin the wheels.

[Inception.dln]

I was wondering about this bizarre symptom with my otherwise excellent Golf Mk6.

When accelerating from a standstill in the wet, or uphill, I can get a fair bit of wheel spin for 3 or 4 seconds until the car moves smoothly and traction control kicks in... nothing unusual there.

But what bothers me is that the entire cabin sounds like a bloody noisy drum while this happens.

Its as if the car is driving across an unsealed road at high speed and sounds like it would shake itself to bits.

I don't know if its my tyres (Pirellis) or the suspension, but I have a stock standard 118TSI DSG for a year now and its always behaved like this.

Should I take it to dealer ? Anyone else have this ?

I too have notice this on two occasions =/

[JonoB]

Thanks everyone, I definitely will ease up because I can't stand that noise.

My car is barely doing 5kmh and it sounds and feels like I'm thrashing across a dirt road... im sure other cars in the past never did this.

[Corey_R]

I've merged this thread into an existing thread of the same topic.

Coincidentally, over in the Skoda area, another thread on this same topic was started today:
http://www.vwwatercooled.org.au/f149...fix-58584.html

[AdamD]

When accelerating from a standstill in the wet, or uphill, I can get a fair bit of wheel spin for 3 or 4 seconds until the car moves smoothly and traction control kicks in... nothing unusual there.

The traction control should engage and start to reduce wheelspin within a second or so at most. If you see the light flashing on the dashboard, you know it's engaging and that's a good hint to back right off the throttle.

If you're getting this shudder for 3 or 4 seconds before you get any traction control intervention, your problem may not be (solely) wheelspin. Could be damage to or loosely/poorly adjusted suspension components.

My car is barely doing 5kmh and it sounds and feels like I'm thrashing across a dirt road... im sure other cars in the past never did this.

You do need to be giving it the full welly to get heavy wheelspin and bad axle tramp in the dry, unless your car has a serious issue that should be addressed (be that worn tyres or something else). So unless you're being intentionally brutal, this simply should not be something you'd encounter under normal conditions, period. If you wouldn't describe your launch technique as excessive, then I'd suggest you do take your car to a dealership or specialist, and demonstrate the problem to them pronto.

[Banzai]

The drivetrain moves quite a bit under heavy throttle. When you get some wheelspin the TCS kicks in, reduces power and the engine suddenly moves back into place, resulting in a loud thump through the chassis. It is possible that something attached to the drivetrain is hitting the body/chassis.

Sticky tyres and better suspension set-up can help reduce wheelspin and therefore the thump. Firmer engine mounts or an engine mount insert that prevents the engine twisting on the mounts will help a lot. I notice that quite a few vendors sell them.