2003 hdi c5 estate very rough ride quality

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2003 hdi c5 estate very rough ride quality

Post by darbuck »

Hi lads,
need some advice my c5's suspension is absolutely terrible i can feel absolutely every little bump on the road i had wheels balanced aswell as if i go over 70 the wheels feel like they are going to fall off its getting scary any advice very welcome
Last edited by darbuck on 25 Sep 2014, 20:57, edited 1 time in total.
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Re: 2003 hdi c5 estate very rough ride quality

Post by Lighty »

If you can feel every bump, sounds like you have no give in the suspension, maybe the spheres are shot. This would make the ride very hard and quite dangerous at speed .
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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

i tried the for corner test bounce it and she returns after 2 soft bounces is there any standard test for spheres
thanks for quick reply lighty
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Re: 2003 hdi c5 estate very rough ride quality

Post by Peter.N. »

Is it hydractive (6 spheres) or does it only have 4, 2.0. or 2.2 ?

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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

It has 4 spheres 2.0 hdi normal suspension
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Re: 2003 hdi c5 estate very rough ride quality

Post by Peter.N. »

How much movement is there when you bounce it, should be about 4"+ on the rears and 2-3" on the fronts.

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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

im getting roughly that kind of movement and she settles fairly quick and the pump seems fine and no significant leaks
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Re: 2003 hdi c5 estate very rough ride quality

Post by Peter.N. »

If you have that amount of movement it should ride OK assuming you have it on all wheels, the car is obviously 'sitting' on the gas, failing rear trailing arm bearings could cause a hard ride at the rear but this is usually accompanied by the rear wheels leaning in at the top. The only other thing that could make an appreciable difference is the tyre pressures and types, does it have the original wheels?

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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

Hi Peter ,
yes they are original alloys im going to change the tyres and get it all tracked and balanced aswell im finding that at 60mph plus an intermittent vibration comes into the steering wheel aswell it feels cyclical if that's the right word and the longer it runs at these speeds the worse it gets and seems to travel through the car can tracking or balance cause this ive checked the wheel bearings but there doesn't seem to be any movement
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Re: 2003 hdi c5 estate very rough ride quality

Post by Peter.N. »

It sounds as though both front wheels are a little out of balance but rotating at slightly different speeds, cornering could account for this of course, the out of balance areas are adding when in phase and cancelling when out of phase, it depends on the relative position of the wheels so getting them properly balanced should cure that.

Tracking has very little effect on the steering unless its a long way out but it will considerably effect the wear rate.

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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

Thanks for that Peter
i have booked it in for 4 new tyres balance and tracking next week so ill see how that works also my tyre placard on the door frame says 205/65/16 but the tyre guy says he normally fits 55's on c5's what do you reckon would it make much difference she currently has 55's on front and 60's on the back they were on it when i bought it back in may
Thanks again
Last edited by darbuck on 30 Sep 2014, 22:38, edited 1 time in total.
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Post by Northern_Mike »

My C5 Saloon has 195/65/15s on it.

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Re: 2003 hdi c5 estate very rough ride quality

Post by Peter.N. »

The the bigger the better as far as the ride is concerned, mine has 195/65/15s and the ride is pretty good. The more rubber you have between the car and the road the better the ride will be.

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Re: 2003 hdi c5 estate very rough ride quality

Post by darbuck »

so id be better off with the thicker tyres ill give it a go lads thanks for your help and ill post back when she has new rubber

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Re: 2003 hdi c5 estate very rough ride quality

Post by daviemck2006 »

My standard 16 inch tyres are 215/55/16.
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