5th and 6th gear noise anyone

V50PKR · Apr 25th, 2013, 20:15

Ive had this car roughly 6 months now and after a few months ive noticed a noise when im in 5th and 6th gear its a kind of grindy noise but although its there its not getting worse

Has anyone had this before? mines a 55 plate v50

Daim · Apr 25th, 2013, 22:03

Engine?

There are 4 different 6 speed gearboxes used... All coupled to different engines:

D5/D4/D3: M66D (or W)
2.0d: MMT6
D2: B6D2
T5: M66W (or D)

Now, as the M66 is basically the same, it would be the question: what engine is it you have? All the boxes (except M66) have a different construction. Some MUST crunch, others WILL crunch and others SHOULDN'T crunch.

Proghound · Apr 26th, 2013, 14:54

That's got my interest, Daim.

Given an M66 on a D5 (2008 C70), is that one that shouldn't, will or should crunch?

1st into 2nd can be difficult to get smooth especially when cold.
3rd into 4th is silky smooth when cold but has a definite 'snick' when warm.
It's only a 24000 mile car - 4k of them mine, since Christmas.

'Box design, or lots of local driving by the previous owner wearing lead boots?

Daim · Apr 26th, 2013, 16:19

It will crunch, but it shouldn't - if you get what I mean. New it shouldn't but with age it eventually will.

The gear change mechanism has been made so "soft" and "indirect" to make it switch with ease but at the same time can cause the odd crunch noise.

Just so you have a comparisson: the MTX75 (1.6d, 1.8, 2.0) WILL crunch and SHOULD crunch. If it doesn't, then something is wrong... And that isn't a "crap" saying. The MTX is a crap box and if it doesn't make the crap crunch noises, something is def. wrong!

V50PKR · Apr 27th, 2013, 15:52

I believe it is the mmt6, and looking at the haynes manual diagrams for gearboxes that the 5th and 6th gear rails are at the top of the gearbox i thought it might be low in fluid or old etc. so i drained and put new oil in. I refilled it by the side filler plug behind passanger front wheel.

It didnt make any difference to the drive sound.

shiftyseamus · Apr 27th, 2013, 16:07

Not hugely helpful but mine also does the same.

V50PKR · Apr 28th, 2013, 18:48

Siftyseamus,

are you replying to me that your car does the same noise whilst on motorway etc. driving in 5th n 6th?

I got my car before xmas and it seems to have got this noise since xmas, some great present that was lol.

Mines done 150k miles now, I wish i had kept my P38 4.6 V8 range rover which was smooth and sounded great but as i travel to work it cost me £50 per week whereas the V50 costs me £20 ish.

I only got rid due to baby on way of which hes here 2 weeks ago.

shiftyseamus · Apr 28th, 2013, 22:18

Quote:

Originally Posted by V50PKR

Siftyseamus,

are you replying to me that your car does the same noise whilst on motorway etc. driving in 5th n 6th?

I got my car before xmas and it seems to have got this noise since xmas, some great present that was lol.

Mines done 150k miles now, I wish i had kept my P38 4.6 V8 range rover which was smooth and sounded great but as i travel to work it cost me £50 per week whereas the V50 costs me £20 ish.

I only got rid due to baby on way of which hes here 2 weeks ago.

Yup, mines done 130k and I have a whirring noise in 5th and 6th.

V50PKR · Apr 29th, 2013, 00:05

Mine has done it since about xmas, how long has yours been doing it???

I'm thinking of selling not because of this sound but need more boot space due to baby arriving.

Apr 25th, 2013, 20:15	#1
V50PKR Junior Member Last Online: Oct 23rd, 2018 22:52 Join Date: Nov 2012 Location: Wakefield	5th and 6th gear noise anyone Ive had this car roughly 6 months now and after a few months ive noticed a noise when im in 5th and 6th gear its a kind of grindy noise but although its there its not getting worse Has anyone had this before? mines a 55 plate v50

Apr 25th, 2013, 22:03	#2
Daim Brit in Germany Last Online: Today 15:28 Join Date: Jan 2011 Location: Bremen	Engine? There are 4 different 6 speed gearboxes used... All coupled to different engines: D5/D4/D3: M66D (or W) 2.0d: MMT6 D2: B6D2 T5: M66W (or D) Now, as the M66 is basically the same, it would be the question: what engine is it you have? All the boxes (except M66) have a different construction. Some MUST crunch, others WILL crunch and others SHOULDN'T crunch. __________________ The Best Nation Is Imagination 2010 V70 (Type 135) D5 (D5244T10) Automatic (TF-80SC)

Apr 26th, 2013, 14:54	#3
Proghound Volvo and Audi owner Last Online: Apr 26th, 2024 16:00 Join Date: Dec 2012 Location: Leighton Buzzard	Not to hijack the OP's question, but .... That's got my interest, Daim. Given an M66 on a D5 (2008 C70), is that one that shouldn't, will or should crunch? 1st into 2nd can be difficult to get smooth especially when cold. 3rd into 4th is silky smooth when cold but has a definite 'snick' when warm. It's only a 24000 mile car - 4k of them mine, since Christmas. 'Box design, or lots of local driving by the previous owner wearing lead boots?

Apr 26th, 2013, 16:19	#4
Daim Brit in Germany Last Online: Today 15:28 Join Date: Jan 2011 Location: Bremen	It will crunch, but it shouldn't - if you get what I mean. New it shouldn't but with age it eventually will. The gear change mechanism has been made so "soft" and "indirect" to make it switch with ease but at the same time can cause the odd crunch noise. Just so you have a comparisson: the MTX75 (1.6d, 1.8, 2.0) WILL crunch and SHOULD crunch. If it doesn't, then something is wrong... And that isn't a "crap" saying. The MTX is a crap box and if it doesn't make the crap crunch noises, something is def. wrong! __________________ The Best Nation Is Imagination 2010 V70 (Type 135) D5 (D5244T10) Automatic (TF-80SC)

Apr 28th, 2013, 18:48	#7
V50PKR Junior Member Last Online: Oct 23rd, 2018 22:52 Join Date: Nov 2012 Location: Wakefield	Siftyseamus, are you replying to me that your car does the same noise whilst on motorway etc. driving in 5th n 6th? I got my car before xmas and it seems to have got this noise since xmas, some great present that was lol. Mines done 150k miles now, I wish i had kept my P38 4.6 V8 range rover which was smooth and sounded great but as i travel to work it cost me £50 per week whereas the V50 costs me £20 ish. I only got rid due to baby on way of which hes here 2 weeks ago. __________________ 55 plate V50 2.0d euro 4

Apr 27th, 2013, 15:52	#5
V50PKR Junior Member Last Online: Oct 23rd, 2018 22:52 Join Date: Nov 2012 Location: Wakefield	I believe it is the mmt6, and looking at the haynes manual diagrams for gearboxes that the 5th and 6th gear rails are at the top of the gearbox i thought it might be low in fluid or old etc. so i drained and put new oil in. I refilled it by the side filler plug behind passanger front wheel. It didnt make any difference to the drive sound.

Apr 27th, 2013, 16:07	#6
shiftyseamus New Member Last Online: Mar 20th, 2024 22:44 Join Date: Apr 2013 Location: Shropshire	Not hugely helpful but mine also does the same.

Apr 29th, 2013, 00:05	#9
V50PKR Junior Member Last Online: Oct 23rd, 2018 22:52 Join Date: Nov 2012 Location: Wakefield	Mine has done it since about xmas, how long has yours been doing it??? I'm thinking of selling not because of this sound but need more boot space due to baby arriving. __________________ 55 plate V50 2.0d euro 4

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