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2013 530D F10
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Discussion Starter · #1 · (Edited)
Hi - I am a new owner of 2013 530D F10 LCI. It has been raining the last few days and I have noticed that in the wet the handling doesn't feel right. When I am going around a roundabout or a bend, if I power on even slightly I can feel the back end slide a little. It almost feels like a puncture (it isn't I checked).

Is this normal ? I thought it was perhaps me coming from FWD to RWD (last time I had a RWD was about 30 years ago).

Any advice much appreciated. Tyre pressures (17" Pirelli RFT's) are fine. Bolts are secure. It just feels "squishy" and "slidey" round bends. I have to power off as I feel like I might lose it. And when I said "power on even slightly", I mean only slightly - Not flooring the throttle.

It may have been doing it in the dry (and I haven't noticed) but it is only in the wet that I have noticed it recently.

EDIT: I have just remembered, Last week I clipped a kerb with the back passenger side wheel at low speeds whilst turning left. About 3 minutes after that I came to a roundabout (dry sunny day) and the back end slid out a bit - I put it down to oil on the road. Could I have damaged something ?

Any advice much appreciated.
 

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Assuming tyres are in good condition as a starting point I would check all the bushes on the back and have alignment checked. Then go from there.
How many miles are on the clock?
 

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Discussion Starter · #3 ·
Hi Johnnyroper - just over 100k - I have edited my post since as I remembered that I did hit a kerb at low speed.
 

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Any misalignment of the rear will quickly show as vibration or noise if it's bad. If slightly misaligned rapid & excessive tyre wear on the affected wheel will soon become obvious.
Depending how hard and the nature of the clout (up & over or side on) you may have distorted something. BM rear suspension is actually quite tough in my experience but alloys aren't!

To start I'd look at the age, condition, and the brand of your rears. Not all tyres are born equal, and you'll get what you pay for.
My 520D E61 ran on 19" RFT Conti's which I found provided good comfort with high levels of wet and dry grip.
Long story short, thanks to a local builder, I had 3 nearside rears written off by screws in the space of 10 days.
Because the sidewalls were penetrated no one would repair them, at £200 a time I couldn't afford the 3rd replacement.
I fitted a £70 Chinese made job from a national retailer as a stop gap. Yes, it looked the part, but grip was in short supply.
The car would wiggle and shimmy hard cornering in the dry and slide in the wet till the DSC cut in and collected it. Lots of wheelspin nearside. Bloody awful thing it was.
A must is to check is your pressures. Really important on RWD BM's as they can be surprisingly sensitive to incorrect inflation.
The correct settings should be on the label found on the driver’s side door pillar. Read carefully, set COLD to those nearest your circumstance. When happy, adjust up or down by 2-3psi to optimise.

Good Luck
 

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Discussion Starter · #6 ·
Mine are RFT Contis all round with plenty of life - Not sure of the age but will check tomorrow when it's light - Clout was literally me running the rear wheel against the kerb which then made it rise over it as I was taking a left turn at around 5mph from traffic lights. It was enough to make the back end "shuffle" though and it has taken a chunk out of my alloy.
 

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Discussion Starter · #7 ·
(So, if you can imagine, passenger side rear was compressed against the kerb and then rode over it as I went further round the corner)
 

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Obviously, I can't inspect your car in the flesh. From your description and my experiences of clobbering things with a 5 series or two I'd wager no harm done apart from scuffing.
If youre really concerned I'd have an alignment check done. I really do hate to say this, a BMW dealer is best.
A lot of so-called tyre specialists either don't have the correct setting info', do it correctly with a part weighted vehicle or worse still, don't even know what they are doing.
Hunter alignment equipment is apparently the to go to machine of choice for beemers. You might be lucky and know of a firm you can trust?
I really would look at your tyre pressures and don't forget a 530D has gods only amount of torque to shove into that back end, even at low rev's!
 

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Is the traction control light flashing at all when you apply the power?
It should cut in and reduce the power before the car has a chance to spin, but it is normal for the rear to wiggle from side to side a little under power.
One thing to keep in mind is that these 530d have an open diff and a lot of torque (really ought to come with an LSD) so it doesn't take much provocation to spin up and inside rear in the wet and make the back end jiggle a bit but, provided the DSC systems are on the car will not actually spin on you.
 

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Does it feel loose only/more when turning one direction? Like turning left feels like its going to step out when power is applied but turning right isnt bad in same conditions? I was over exuberant in a MR2 once and spun out at about 100 mph but luckily I only hit a foot path went almost stopped but it ruined the rear alloy and bent the left rear tie rod slightly. This lead to the car being very light on right turns.
What i am getting at is, if its only when you turn one direction then its most likely damage from the curb impact but if its like that in both directions then its possibly wheel alignment or bushings worn.
 

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Discussion Starter · #11 ·
Traction light isn't coming on at all. I've haven't noticed if it is in both directions - I will give that a go later :)
 

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Sounds like an alignment issue since you clipped the curb then noticed the problem, jCause and effect.


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