Why does the MK 7 Golf do this?

[Urban Sports]

I've got a new bluemotion TDI on rental, just wondering why it limits the rpm when stationary? Is it to stop muppets like me over revving them when they are cold or something?

https://www.youtube.com/watch?v=GZ37N_GBklk

[donaircooleone]

Launch control?

[Urban Sports]

donaircooleone said:

Launch control?

Lol that was my first thought

[Turtle head]

Bluemotion thing to stop fuel being wasted?

[JakeT]

Urban Sports said:

I've got a new bluemotion TDI on rental, just wondering why it limits the rpm when stationary? Is it to stop muppets like me over revving them when they are cold or something?

https://www.youtube.com/watch?v=GZ37N_GBklk

I would be guessing it's to stop people from redlining it and then dumping the clutch causing untold pain and misery on the clutch, gearbox and all other drivetrain components. It could also be to prevent turbo death from lots of RPM's in the turbo when there's little cooling air. There's probably something in the owners bible manual about it, too...

[TobyLerone]

Isn't it the case if you turn the traction control off, it will let you rev the engine freely?

Not sure why you'd want to on a Bluemotion Golf though...

[Slidingpillar]

To protect the engine against the daft MOT testing for diesels. Perhaps.

[Urban Sports]

TobyLerone said:

Isn't it the case if you turn the traction control off, it will let you rev the engine freely?

Not sure why you'd want to on a Bluemotion Golf though...

The TC was off, it did the same with it on!

[BFG TERRANO]

My company diesel Seat does this. 2500rpm only.

[GroundEffect]

Is it auto? They do this limit trans load.

[dave_s13]

My pals 2007 audi a3 2.0tdi does this too.

[Urban Sports]

GroundEffect said:

Is it auto? They do this limit trans load.

No manuel.

[Motorrad]

Urban Sports said:

No manuel.

You cunning devil you

[Urban Sports]

[Tony33]

I read somewhere that revving an engine with no load can increase piston ring wear. Lots of cars have a low limit when in neutral. I recall my father-in-law convinced his Jag S Type had an issue well over a decade ago only to be told that was to protect the engine.

[TurboHatchback]

Forgive me for asking the obvious question but why would you want to rev the tits of a diesel Volkswagen at a standstill?

[panholio]

My old Mk VI did the same.

[Urban Sports]

TurboHatchback said:

Forgive me for asking the obvious question but why would you want to rev the tits of a diesel Volkswagen at a standstill?

Clearly it didn't happen.

[P I Staker]

To get it past the MOT smoke test.

[Urban Sports]

P I Staker said:

To get it past the MOT smoke test.

Brand new car lol