[C10TTN]

Recently got the E46 328i auto Touring and have been very pleased with it, its a one owner 120,000 miles with full BMW history. The only thing I am not sure about is that on most hills it has to change down a gear, is this the norm. I`d of thought it would have enough power to not change gear.

Also i seem to have a weering sound from the back between 55 and 65 mph which doesn`t get louder on bends, any ideas please.

 

[Jonathan]

I'd say the auto box is designed to keep the engine in its most efficient rpm range and so don't worry if the box shifts down on hills. It's not meant to be a demonstration of how flexible the engine is.

As for the noise from the rear, I've had a 530i, 528i and now 330i and all of them have had a whining noise from the rear at around the national speed limit. I've been assured it's differential whine and nothing to worry about. If it really bothers you, you could enquire about getting the diff oil changed but it's important you replace it with the correct grade of oil and I'm not sure if it will entirely eliminate the noise.

 

[bandit890]

As for the noise from the rear, I've had a 530i, 528i and now 330i and all of them have had a whining noise from the rear at around the national speed limit. I've been assured it's differential whine and nothing to worry about. If it really bothers you, you could enquire about getting the diff oil changed but it's important you replace it with the correct grade of oil and I'm not sure if it will entirely eliminate the noise.[/QUOTE]

I have the 330i and was told the same thing,been doing it for a while with no problems and i have just got used to it now

 

[Ronnie]

May be also worth while getting the fault codes read off the DME(ECU), they are common for cam sensors going.

Any BMW main or specialist will be able to do it for you