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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Service for 335xi at 100k miles



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      09-23-2015, 11:51 AM   #1
steinauf
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Service for 335xi at 100k miles

I just passed 100k miles on my 07 335xi. I've been reading up on recommended service at this point and am just getting confused by all of the different suggestions. I'd like to keep this car running for awhile but don't have an unlimited budget to just replace everything someone can think of in the car.

I know I'm due for an oil change and brake flush. Recently changed the ac filter and had an alignment. Coolant pump and thermostat were replaced under warranty at 89k. HPFP was replaced at 75k.

What do I really need to replace now, and what can wait? How much should I expect to spend?

Thanks!
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      09-23-2015, 12:00 PM   #2
Delta0311
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Check the tensioner and belt.
Flush the tranny and if its an auto do a flush and pan/filter replacement.
Flush differential fluids and transfer case fluid.
Flush the power steering fluid. They should have already flushed the coolant when they did the pump, so you're g2g on that.
Replace spark plugs.
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Last edited by Delta0311; 09-23-2015 at 12:07 PM.
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      09-23-2015, 12:07 PM   #3
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Also if one of your ignition coils starts to fail then do yourself a favor and replace all 6.
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You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?
Arnold Schwarzenegger
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      09-23-2015, 12:11 PM   #4
steinauf
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Quote:
Originally Posted by Delta0311 View Post
Check the tensioner and belt.
Flush the tranny and if its an auto do a flush and pan/filter replacement.
Flush differential fluids and transfer case fluid.
Flush the power steering fluid. They should have already flushed the coolant when they did the pump, so you're g2g on that.
Replace spark plugs.
thanks. Service tech at the dealer told me "you don't change the power steering fluid in these". Is there any merit to that?
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      09-23-2015, 12:17 PM   #5
Delta0311
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Quote:
Originally Posted by steinauf View Post
thanks. Service tech at the dealer told me "you don't change the power steering fluid in these". Is there any merit to that?
There is no such thing as "lifetime fluid"...
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You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?
Arnold Schwarzenegger
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      09-23-2015, 12:53 PM   #6
steinauf
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how about battery? i've never changed it, and bought it CPO with 30k in early 2011. do i need to be proactive with changing it, as in will it give me signs that it's dying, or will it be a sudden failure i should take care of before it's toast?
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      09-23-2015, 12:54 PM   #7
Delta0311
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Quote:
Originally Posted by steinauf View Post
how about battery? i've never changed it, and bought it CPO with 30k in early 2011. do i need to be proactive with changing it, as in will it give me signs that it's dying, or will it be a sudden failure i should take care of before it's toast?
Yeah I would definitely change it at 100k. It should be on its way out at this point.
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You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?
Arnold Schwarzenegger
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      09-23-2015, 04:22 PM   #8
steinauf
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called up the shop and got some prices:

differential flush: $55
transfer case flush: $110
power steering flush: $80
spark plugs & coils: $675
oil change: $125
brake flush: $125
full transmission service: $830

i can probably get the plugs and coils done myself or with the help of a friend
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      09-23-2015, 06:50 PM   #9
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Quote:
Originally Posted by steinauf View Post
called up the shop and got some prices:

differential flush: $55
transfer case flush: $110
power steering flush: $80
spark plugs & coils: $675
oil change: $125
brake flush: $125
full transmission service: $830

i can probably get the plugs and coils done myself or with the help of a friend
Transmission service price is rediculous. If your car is manual then it's just a flush and fill. If it is an auto then you have to drain the fluid, drop the pan/filter, replace it with a new one, and fill it back up. Job is 1.5hr max.
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You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?
Arnold Schwarzenegger
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      09-23-2015, 08:18 PM   #10
floydarogers
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Quote:
Originally Posted by steinauf View Post
...
spark plugs & coils: $675
...
full transmission service: $830

i can probably get the plugs and coils done myself or with the help of a
You *DO NOT* need to change the coils as a preventative maintenance item.

That's a little expensive for tranny service, but not terribly excessive. $700 would be better. The fluid costs $50 per quart and it takes 6-8, depending upon whether you flush new through the torque converter; which is probably what that estimate is for. You also should consider renewing the mechatronic seal, in addition to the pan gasket (which must be done.)
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      09-23-2015, 09:30 PM   #11
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Power steering fluid flush is a rip. Just do the turkey baster method.
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      10-01-2015, 12:44 PM   #12
bvanlieu
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Quote:
Originally Posted by floydarogers View Post
You *DO NOT* need to change the coils as a preventative maintenance item.

That's a little expensive for tranny service, but not terribly excessive. $700 would be better. The fluid costs $50 per quart and it takes 6-8, depending upon whether you flush new through the torque converter; which is probably what that estimate is for. You also should consider renewing the mechatronic seal, in addition to the pan gasket (which must be done.)
The fluid may have cost that for LF6 when it first came out , or with a hideous markup, but its far more reasonable now.

Kits with the pan and 7 qt of ZF LF5 of 6 fluid can be had for $300 or less from places like The CSC shop.

Many threads on here about this, so IMHO 500 or less is the cost of this job using 1.5hr at a private shop, or 300 if DIY.

My 335d got a DIY a few weeks back

Car that old probably has the original Mech seal vs. the newer o ring one but if it was newer and not leaking...there is something to be said for leaving it alone.

- b
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