[bryanlopez]

I’m reaching out to the community for suggested maintenance intervals for a b46/48 nearing high mileage.
I bought the car in December so I’m not sure how well the car has been maintained prior to my ownership.
I doubt spark plugs have been done so I’ll be doing them soon.
Any suggestions on fluids and brands are welcomed .

[ooshnoo]

Regardless of engine, there are many other threads discussing this same question. Do a quick browse and you'll find them.

[learntocode]

Originally Posted by bryanlopez

I’m reaching out to the community for suggested maintenance intervals for a b46/48 nearing high mileage.
I bought the car in December so I’m not sure how well the car has been maintained prior to my ownership.
I doubt spark plugs have been done so I’ll be doing them soon.
Any suggestions on fluids and brands are welcomed .

Engine oil & oil filter change. If you want to check, the air box filter under the hood, cabin filter interior on passenger side. Look into transmission fluid change. Check the brake systems (fluid, pads, rotors).. I usually stick with BMW brand for parts.

[cfm56d7b]

Originally Posted by learntocode

Engine oil & oil filter change. If you want to check, the air box filter under the hood, cabin filter interior on passenger side. Look into transmission fluid change. Check the brake systems (fluid, pads, rotors).. I usually stick with BMW brand for parts.

Nice list - same recommendations.

If the brake fluid needs to be replaced, I suggest to replace OEM brake lines with aftermarket stainless steel ones at the same time.

Brake fluid should be replaced every 24 months. Brake fluid is hygroscopic, i.e brake fluid will absorb moisture from the atmosphere.

[chowser51]

i tested my brake fluid at 60+k miles. 0% moisture. I changed it anyway since a bottle was $11.

spark plugs are easy on this car so you might as well do them too