M603

I have a 08 535xi about to hit 80k miles, are there any maintenance I should be doing at this mileage ? I do regular oil changes at 5k invervals but thats about it, any suggestions ? tia !

Persian_535i

Changing your spark plugs is one thing I'd do around that mileage if you already haven't.

M603

Yea I figure that will be on the list too, does it make a difference going with aftermarket spark plugs or better to use oem ?

pjinca

Good quality aftermarket are just as good, if not better than OEM, our cars typically came with either Bosch Platinum +4 or NGK plugs as OEM (sometimes labeled "BMW"). I replaced my plugs last year with the Bosch ones and it turned out they were the ones my car came with. You do remind me that I need to drive my car more often, I just passed 80k miles and my car is 3 years older than yours

SD5Series

hmmm i'm at 96k and I haven't changed SP out yet... guess i am lagging to do that.

M603

I had a 92' 325is few years ago and it had 250k miles and the engine was running great...I believe these cars will last good while if they are well maintained, so go drive you car more lol.

borderchris

Wow. That's it?

If you're serious about maintaining your machine, here's what I'd look at before 100K:

1. CCV
2. DISA
3. Coolant Expansion Tank
4. Radiator
5. Spark Plugs
6. Coils (they're only $30 each)
7. MAF cleaning
8. TB cleaning
9. TB gasket
10. O2 sensors, all 4 of 'em
11. Rear diff fluid
12. Transmission fluid
13. Belts
14. Tensioner and idler pully
15. Injector flush

These are basic, well known M and N54 jobs before 100K- just space 'em out and handle them one at a time. Your car will thank you.

M603

Thats a good list to cover, at least it will give me something to work on this summer, thanks !

Spark plugs and atf was done this weekend, note to those that want to tackle the spark plugs yourself, the spark plugs for the n54 requires a special tool to remove its not the usual hexagon.

BimmerFan52

Just did my 2004 545i with 82K miles and it made a huge difference in throttle response.
I used the Bosch OEM (replaced factory NGK) because the Bosch was on sale for less than $6.00 with a $3.00 per plug rebate through Amazon.
After rebate 8 plugs for less than $24.00 and free shipping - tough to beat.

Lots of good DIY on forums. On the V8 Plugs #4 and #8 are as bad as everyone says but the socket assembly you build up is key.


Addition maintenance I have done are rear diff. drain and flush, trans drain and flush, power steering drain and flush, and of course engine oil and filter every 5-6K.

M603

looking at what shocks to replace it with, I have xi model, anyone have suggestions to what brand to use ? I was thinking either oem or koni ?