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Hello all.

My E46 M3 SMG (2003) needs quite a bit of TLC. It's done 120k miles, and you can tell. I'd be grateful to hear of any suggestions as to what I could do to improve some of the issues that come with a high mileage car, and which parts I could renew to achieve max potential from this ageing beauty.. My aim is to buy all the necessary parts and leave it with a garage to have it restored as close to it's original state as possible.

Some issues mentioned below may or may not be directly related to high milage. I was having problems with the suspension already when things were made worse by my recent girlfriends near-death-experience of hitting 2 curbs in 1 day then grinning whilst informing me of her disgrace.


Here's are a few things I'd like to fix -



- at 65 mph on the motorway it would start getting increasingly more difficult to control, swaying side to side giving a very boat like feel.

- at motorway speed, you'd better hope you spot the approaching puddles. They don't have to be deep at all, just a layer of water will try and spin you if you brake while going through it. The traction control is the only thing that keeps you from losing control.

- The power seems to have decreased hugely over a short period of time.

- you don't feel as though the car sticks to the road as it should when taking a bend.

- the exhaust screams like a Kawasaki




Any recommendations of where to begin making good of the handling. Is it worth buying a whole new set, or is it more likely to be a simple fault that's causing most of the problems.

Thanks for your time and answers
 

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get it to a good specialist for full diagnosis. but at that mileage it will need new suspension if it hasn't been done already get that done and then a specialist alignment eg wheels in motion. These cars only drive well if they are in good order and if they are not are actually inferior as a driving proposition to much lesser cars.
 

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Agree with rm1, these M-cars need meticulous attention. It's up to you but if my Mrs was that bad a driver then she'd be walking everywhere or taking the bus.
 

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The e46 Mtech suspension gets tired after about 70-80k. At 120k it needs replacement, shocks, springs, wishbones, droplinks and roll bar bushes, control arm bushes, rear trailing arm bushes. Then a 4 wheel alignment on a hunter machine.

As for the power drop, you sure you're not just getting used to the power?
 
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