2004+ used BMWs?

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Right now I'm pretend shopping, but I need some convincing to leave Japanese brands. For awhile I was positive I was going to look for a used Prius, but the drive was so boring! I'm not too concerned with horsepower numbers and 0-60 times, just want something with decent gas milage and is fun to drive.

I used to have a 2003 Infiniti G35 coupe and loved it. Since they're so popular a used G35, or maybe 350z are pretty cheap. Working on those V6s was incredibly easy, but the interior of those cars are plastic ridden and not very attractive. The leather also is closer to vinyl or is thin and wears easy.

I'm not afraid of doing maintenance on my own. I've done the dirty timing belts and valve adjustments in Hondas. I am afraid of specialized service tools and expensive replacement parts that Euro cars need. I also don't want to buy something used and discover electric gremlins, or need to replace expensive black boxes.

I am mostly attracted to small BMWs. I like the nice interiors, but before I go to the dark side, I'm concerned with mechanical reliability. My Japanese brands that I've owned are easy to work on and rarely break down when maintained. I'm really thinking about a new used car under $20k. I'd like it to be under 60k miles and I was surprised to see how cheap used Z4s were. The 1series still seem too new to have a developed a used supply, so they're out.

So, for owners of the current gen 3 series or Z4s have you guys had reliable mechanics? I see lots of 5 and 7 series with 100k miles, but not very many with 150k miles. Is that pretty much the life expectancy of the drivetrain? BMW engines seem to be well built. I'm not a fan of anything VW, including Porsche and Audi. I ruled out Mercedes since their SLK forum was riddled with factory recalls and TSBs.

Any feedback or direct experiences are much appreciated!
 
I would say the main reliability issue with BMWs have been the cooling system. Water pumps should be replaced every 60,000 - 70,000 miles. The expansion tank is composite and they split especially if overfilled. There is a Stewart water pump that is stainless steel and has a lifetime warranty available.

The next item would be the control arm bushings, they seem to wear out by 80,000 miles and if not replaced can lead to having to replace the control arms.

You might want to read some in the BMWCCA forums, BimmerFest and E46 Fanatics.

http://www.bmwcca.org/
http://www.bimmerfest.com/
http://www.e46fanatics.com/
 
Mine's a 2003 Z4 that reached 95k miles last week. So far it has been trouble free. At 95k miles I still think that the car is still new and I have no concerns about it.

But Z4-s are simple cars compared to, say, a 7-series, so there is not much to break anyway. If you are looking for a daily driver on marginally acceptable roads, a Z4 would not be the right choice as you will feel every single bump on the road.
 
The reason that we don't see many high mileage z4-s is because these are weekend cars simply for going on a ride and enjoying the day. There are very few people who drive it year round - for that you will need a set of snow tires if it's in the Northern part of the country.
 
My sister bought a CPO 2006 330ix a year or so ago, end of lease car with just under 30k. It has 40-something k now and has been trouble free.

Seems like a nice car, I just wish it didn't have run-flats.
 
run flats are the first thing to toss away. Unfortunately, the spare then takes up a lot of the trunk space.
 
Originally Posted By: 97tbird
don't forget power window regulators of the E46 era.


Yeah, hopefully that is something they resolved with the E90s. It's an annoying problem that unfortunately can't be prevented except by not using the power windows.

Some of these cars have transmission issues as well. My friend's E46 auto has an intermittent trans light that is accompanied by poor shifting. When the light isn't on, it seems to be fine. It has done this a couple times and corrects itself a day or two later. I know other auto BMWs have had issues in the past as well. Again, this may be a non-issue with E90s...I don't have any real experience with them.

My experiences are with E36 and E46 cars, which isn't what the OP is looking for, but they are predecessors. They are not perfect, they do have quirks and sometimes major problems. Overall though, they are reliable cars. I think they definitely hold up to hard use better than most passenger cars. If E90s are at least as good as these cars, I would have no problem buying one.
 
There's a lot of talk about some parts of E90's interior material being actually cheaper feeling and looking when compared to E46...They also took out a bunch of standard amenities in the interior after 2008.
 
I had that window regulator issue when buying my E89. AFAIK, it cost $60 for the seller to fix it.
 
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