Slight Gearbox Issue

[MC197]

Hi all,

I've noticed every now and again, when the car is being driven fairly hard... when changing down from 5th to 4th the slightest little crunch, even though the clutch is full depressed. All other gears fine and no problems when the car is being driven normally.

Its a 2008 with 44K on the clock.

Any ideas, or has anyone experienced any similar problems?

Thanks in advance.

 

[Jonesy]

common problem on the 197's where the syincros go in the box's

 

[MC197]

I thought that would more than likely be the case.

I'll speak to my mechanic tomorrow.

Cheers.

 

[RalphyBMW]

If you want a box to have refurbished, I have a spare one with slight wear to the syncro on third. It would be ideal to have refurbished to then just swap over, rather than have to have your car off the road for a long time.

Also, if you are changing the 'box, you might also consider doing the clutch and slave cylinder, the slaves are a bit weak on these.

 

[captain_caveman]

Interesting you mention this, my 200 (12,500 miles) has started doing it, from 3 to 4 and from 5 to 4, when driving it "hard". I've noticed a slow gear change (let revs go right down) and it's ok, a fast gear change and can get a slight crunch / grind. Does yours do it from 3 to 4? Also does anyone know if this is something to be concerned about?

 

[Graeme GTR]

get it in to renault for a new box asap. been through 2 boxes, its no problem getting it replaced.

 

[JoshV]

Interesting you mention this, my 200 (12,500 miles) has started doing it, from 3 to 4 and from 5 to 4, when driving it "hard". I've noticed a slow gear change (let revs go right down) and it's ok, a fast gear change and can get a slight crunch / grind. Does yours do it from 3 to 4? Also does anyone know if this is something to be concerned about?

Mine does exactly the same as yours, except 2nd to 3rd. Not a problem when driving normally as you say, or if you let the revs drop. Trouble is I'm a long time out of warranty- '56 plate 30k miles, so is something I will have to live with or get refurbished if it gets worse/have the money

 

[racer2011]

Mine does exactly the same as yours, except 2nd to 3rd. Not a problem when driving normally as you say, or if you let the revs drop. Trouble is I'm a long time out of warranty- '56 plate 30k miles, so is something I will have to live with or get refurbished if it gets worse/have the money

Hi Josh,

I have this problem as well in my Albi 06 plate 197 with currently 37k on the clock. I mainly do urban driving mostly so I drive it normally most of the time. However, at times I give it a blast and from 2nd -3rd it crunches a bit, and 3rd-4th it's not as smooth or fluent change. As mentioned this only happens when I give the car a blast and not normally. I am going to change the fluid in the box early next year.

I will keep an eye on it, but as you know urself gearboxes aren't cheap so it'll have to get much worse for me to cough up the funds to get the box refurbished.

The next big job I will get done at 45k is the aux belt, cam belt, and waterpump change. Have you got yours done yet mate?

Look forward to your feedback.

cheers, Chris

 

[JoshV]

Hi Josh,

I have this problem as well in my Albi 06 plate 197 with currently 37k on the clock. I mainly do urban driving mostly so I drive it normally most of the time. However, at times I give it a blast and from 2nd -3rd it crunches a bit, and 3rd-4th it's not as smooth or fluent change. As mentioned this only happens when I give the car a blast and not normally. I am going to change the fluid in the box early next year.

I will keep an eye on it, but as you know urself gearboxes aren't cheap so it'll have to get much worse for me to cough up the funds to get the box refurbished.

The next big job I will get done at 45k is the aux belt, cam belt, and waterpump change. Have you got yours done yet mate?

Look forward to your feedback.

cheers, Chris

Hi Chris, I'm exactly the same, I do 18 miles a day urban driving so don't really get the chance to give it any. Only occasionally its not as fluid from 3rd to 4th but it doesn't crunch at least. But as you say, since the boxes or refurbs are very expensive I shan't be replacing it any time soon

My belts will need doing in march time as the car will be 5 years old. I will start looking soon for places in/around the Kent area to do it as that's a very expensive job as well! I'm doing an oil and filter change in a couple of weeks and am very tempted to do the gearbox oil at the same time...

 

[OzNick]

All i can say is give Redline Shockproof gear oil a go. Ive seen and felt it do some absolutely amazing things to gearboxes that you would have sworn needed new syncros. A couple of years ago a mate of mine bought a cheap S3 Audi and the gear change from 1st to 2nd was crunching its ass off. On the advice of a local independent Audi specialist we changed the gear oil to Redline Shockproof and im not kidding the improvement was unbelievable. I would say that about 97% of the crunching was gone; it was virtually perfect.

Give it a go, you may find that it saves you a gearbox rebuild.