BMW 3 Series 2006 Problems

Parts are readily available for the E90 3-Series and won’t be a problem in the foreseeable future. They will be relatively expensive if bought from a BMW dealer, but are more affordable if you buy from the aftermarket, and they can be imported from overseas at a very reasonable cost.

Take it to an independent mechanic who specializes in BMWs or European brands and have them assess the problem for you. The quote from the BMW dealer would suggest that they want to replace the gearbox, but an independent mechanic might be able to repair it at a much-reduced cost, and even if the gearbox does have to be replaced it will be cheaper.

As a guide you could use the value of locally delivered cars. A 2006 335i sedan has a listed retail value of between $21,000 and $25,000, and a trade value of $17,000 to $20,500. Locally delivered BMWs generally have a comprehensive list of standard features that cars in other markets don't always have, so you need to compare the standard features of your car with those of a car sold new here. The other thing that can affect the value of an imported car is its history. Where has it come from, what has it done, has it been in a crash, is it a genuine car. I would think your car would be worth less than a locally delivered car, and I would value it at $12,000 to $18,000 depending on the condition and the mileage

There's no reason you can't fit conventional tyres to your BMW, although BMW people and some industry experts would tell you that you   would affect the handling of the car. The BMW suspension has been tuned to run the run flats, which have a hard sidewall that contributes to the overall springing of the car, so fitting a conventional tyre with softer sidewalls will affect that springing and the handling will be altered to a degree. But lots of people have changed to conventional tyres without any trouble. As far as the run flat sensor goes, the BMW doesn't have one. It uses the ABS brake system to determine when a wheel is running at a different speed to the others, thus indicating a flat.