Stop my Peugeot 107 from oversteering in the wet

Stop my Peugeot 107 from oversteering in the wet

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sgtBerbatov

Original Poster:

2,597 posts

82 months

Tuesday 11th June 2019
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I've had my Peugeot 107 since new in 2010, and over the few years I've had it I've found it to be a bit tail happy. It doesn't bother me, as I know it could happen and I adjust my driving to suit. And when it does snap I've got it under control. However the wife drives the car and last night I went round a roundabout in the wet and the car just snapped out of shape, she promptly crapped herself and this morning I could see her stabbing the floor with her foot. I'm not an unsafe driver, she even said so, it's just the car oversteering concerned her and that there might be something wrong with the car.

It's happened several times over the years. I've had it happen with Continental tyres, and I have Toyo tyres on there at the moment. The current tyres are about 3 years old and aren't bald. It has 14" alloys as standard, and the shock absorbers are good. No misting and it's still quite firm over bumps. From what I can see, the rear is made up of a sprung axle with no rear anti-roll bar.

The question is can anything be done to reduce the chances of the rear slipping out like this?

sgtBerbatov

Original Poster:

2,597 posts

82 months

Tuesday 11th June 2019
quotequote all
E-bmw said:
sgtBerbatov said:
No misting
Firstly what do you mean by this?
I mean that the shock absorbers themselves have no evidence of misting. What I was getting at was that the shocks aren't sloppy or on their way out.

E-bmw said:
Secondly Toyos are cr@p, especially in the wet.

Thirdly I would be getting your full geometry set up checked & all suspension joints/bushes.

That is not to say there is a problem, but just to make sure there isn't.

As you say some cars are more prone to "lift off oversteer" (which is what you are describing) than others, I would suspect you may have this exacerbated by a suspension geometry issue as most standard card have this "tuned out" by geometry.
I've had Toyo's all round on this and it's fine in the wet. Actually they're better on the front than the Yokohama's are on the front at the moment. But I've had Continentals all round on this car and it's happened before, in the wet and the dry.

I've had the geometry checked before when it happened, I'll have it tried again. The suspension on the rear is fine, it's not broken and the bushes aren't perished. I checked these a fortnight ago when it was up on the ramp for it's MOT.

Thought about the dry spell and the rain, but it happens in the dry aswell.

Oil and other lubricants might be a cause, but I know there is a roundabout I can go around in the wet, dry, snow, saraha dessert and it will oversteer.

I checked the tyre pressures 4 days ago, I will check them tomorrow morning when they're cold.

sgtBerbatov

Original Poster:

2,597 posts

82 months

Tuesday 11th June 2019
quotequote all
GreenV8S said:
Are you driving close to the limit of grip when this happens? That's too fast for normal driving, especially with an anxious passenger in the car. There would have to be a significant problem for the car to slide in normal sensible driving.
I was driving around a roundabout to go to Sainsbury's, so I was going 10/15mph. I wasn't driving to the limit of anything as it was wet and I knew the car was arse happy going around corners sometimes.

sgtBerbatov

Original Poster:

2,597 posts

82 months

Thursday 13th June 2019
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HustleRussell said:
Stumped to be honest. It shouldn't be possible to make the car oversteer without some commitment, especially in the dry (assuming you don't have excellent tyres on the front and st ones on the back).

Swap the tyres front to rear to eliminate the possibility of bad tyres.

If this was being caused by geometry it'd probably have to be so far out so as to be visible with the naked eye (positive camber / negative toe) and would be accompanied by strange tyre wear and other odd driving characteristics. Nothing is adjustable at the rear so the rear beam would have to have been bent by a collision.

Does it do it in left handers too or only right handers?

I'm assuming you don't have an unusual load in the boot?

Is the handbrake fully released? binding?

Check for broken springs at the front

Check that the front anti-roll bar and both droplinks are present

Also, this;

Munter said:
What pedal were you pressing when it happened?
Been quiet about this because I wanted to check everything.

Tyres are fine in terms of pressure and in terms of tread etc. I'll move the tyres around, just haven't had any time to do that.

I've only ever known it to do it on right handers. I didn't have anything in the boot at all.

Handbrake is fully released and isn't binding.

I'll check if the front anti-roll bar and droplinks are there, I'd imagine they are though as I've had the car from new.

Springs aren't broken, they've been checked at every MOT by the tester and by me.

Munter said:
What pedal were you pressing when it happened?
I'm struggling to remember, but I don't think I was on any pedal, except when it did skid when I went on to the accelerator and turned in to the skid.

sgtBerbatov

Original Poster:

2,597 posts

82 months

Tuesday 16th July 2019
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DuncanM said:
sgtBerbatov said:
I'm struggling to remember, but I don't think I was on any pedal, except when it did skid when I went on to the accelerator and turned in to the skid.
When you replace tyres, do you put the new ones on the front and leave the rears, as they take a lot longer to wear? This is a typical thing I see where people have rear tyres that are very old, and although they may not be illegal, there will be a big difference in grip front to rear due to condition.

I put them on the back and the rear ones on the front and rotate them that way. So the tyres on the rear of the 107 are newer than the front.

IJWS15 said:
When I married my wife had a Morris Minor, cross ply tyres etc. I do recall being in it when she spun it on the A1 in Gateshead (early sunday morning, road empty and she avoiced the barriers).

Up til then I had only driven my fathers Volvos (144, 244 and a Mazda 12?)

The MM tyres would scrabble for grip on corners at speed that were uneventful in the Volvos, even in the dry - I changed my driving style.

Think more carefully about how you approach roundabouts, don't put yourself in the situation where it might bite.

Go buy an old MM on crossplies and have some fun at low speeds.
If I bought another car the wife would actually kill me. She's only just got over me buying an old Lada in January!

sgtBerbatov

Original Poster:

2,597 posts

82 months

Wednesday 24th July 2019
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E-bmw said:
sgtBerbatov said:
I put them on the back and the rear ones on the front and rotate them that way. So the tyres on the rear of the 107 are newer than the front.
New or just newer?

When new the grip level is CR@P & on the rear they take much longer to bed in.
Brand new tyres are always at the back. But the ones on there at the moment were new 2 years ago, about 3,000/4,000 miles put on them.