Vibration felt through whole car

a bit extreme Phil....I suppose if you're not happy then you go with it..

I'm getting my exhaust finally sorted tomorrow and the arms/bushes done Tuesday, so I'm hoping Wed I'll be driving mine and it will feel like a 2003 car????

Hi phillip sorry to hear about your problems with your 520i .I own a e39 528ise best car ive ever had ! smooth torquey straight six,comftable capable cruiser ENJOY!

Hi phllip glad you are enjoying your car!.You will find that if you drive quite enthusiasticly the asc will come on easily! Only time i find it annoying is when at a roundabout when its wet and you need to pull away quickly it cuts the power for a few seconds,mind you beats sitting ther with both wheels spinning !. Maybe you can post some pic's when you have some .ENJOY.

Tom,

As you know i had all 4 tyres replaced in my quest to cure the vibration.  I went back to the original tyres which are Conti Eco Contacts.  I had my car from new so I know for sure they are the original equipment.  My wheels although a different style to yours are exactly the same size.  The tyre size is 225/55/16.  My original set lasted 33000 miles. I decided to fit Fulda extremos (directional aquatread type) as replacements on advice from a mate.  Right from the start it was a bad decision.  They were terrible for tramlining and my fuel consumption went through the roof.  i.e on the 800 mile round trip from Oxfordshire to Scotland which i do around 5 times per year I'd get approx 34mpg at around 90mph depending on wind direction and wet roads.  With the Fuldas I was only getting 29 mpg on the same journey.  I saved £40 on the set of tyres but calculated that over 33000 miles they'd cost me about £1000 more in fuel.  Now I have new Contis back on, the difference is amazing.  The steering and directional stability is so much better and the economy has improved already.  The ride is smoother and so much quieter it is unbelieveable.  So my advice is get the Contis.  You won't be dissapointed.  They are what the car was meant to have and it really shows.  I didn't think tyres could make such a difference.  Now I know better.

Hope this helps

Alex

Hi guys, just a quick one. Working in a wheel and tyre centre i come across this problem all the time.

When the vibration is felt through the entire vehicle then the problem is most definately at the rear.

If you have had your wheels balanced then do this and let me know

look to see if you have bang on weights on the inside and outside of the rim?

If not, do you have stick on weights on the inside of the rim but on the inner and outer edges?

If not are the weights just being put in one strip in the centre of the rim?

Check all four wheels

Any damaged wheel needs to removed from the vehicle immediately. you will be very surprised how bad a vibration can be caused from even minor flat spots on a rim.

Has anybody tried getting up to speed where the vibration can be felt and then slipped into neutral, if the vibration goes away then it's more likely to be engine or prop related, but this would also be felt under acceleration.

If it doesnt go away then the only thing can be is the wheels or tyres.

I once had a coil pack go down. That gave a misfire at about 4500 rpm and could easily be mistaken for a vibration. The only test for this is to buy a new coil and test each coil in between test drives. Everyone i know who has had a fault with coil packs and had diagnostic tests done have had the reports come back with no faults.

I'd be interseted to hear how you get on