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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 02-21-2017, 11:22 PM
Here4bizness Here4bizness is offline
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03 325xi with 162k - What maintance I should do with that amount of miles

Hello guys

Just bought a used 03 325xi with 162k on the dash. Can anyone tell me the step by step maintenance, that I should do with that amount of miles. Besides the passenger front window and the sunroof refusing to close, so far no major problems yet(knock on wood) I just want to be on top of all the pre-preventive maintenance, before something major happens!!
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  #2  
Old 02-22-2017, 07:47 AM
marcozandrini marcozandrini is offline
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Automatic or manual tranny?

The cooling system should have been overhauled at 100k miles. If not, change it out now. USE ONLY OEM PARTS! Do not install aftermarket parts, e.g., autozone or oreillys parts!
- water pump
- thermostat
- pulleys
- AC belt tensioner
- main and AC belts
- upper and lower hoses
- radiator (optional)
- expansion tank and mounting bracket.

Power steering fluid needs to changed. I use Redline D4ATF in my car. Siphon out the reservoir, refill, start the engine and rotate the steering wheel from one side to the other. Stop the engine and do the process 3 more times. You'll need a quart of Redline D4ATF.

Automatic? The tranny was made by GM of France. How do I know? All awd E46s with an auto tranny have a GM tranny. Buy the kit from ECS Tuning and change the fluid and filter. DO NOT HAVE THE TRANNY CHEMICALLY FLUSHED!

Manual? Use Redline D4ATF. Yup, an automatic tranny fluid!! You'll need 2 quarts and a transfer pump.

Change the differential and transfer case fluids. The differentials need a synthetic GL5 (not a GL4!!!!!) 75W90. I use Redline GL5. I'm not sure what the transfer case uses. Check with the dealer.

The crankcase ventilation system (CCV) is likely in need of changing. A bad CCV will literally dump oil into the cylinders.

A weak point is the oil filter housing gasket. It's an $8 part at the dealer but a real pita to change. It leaks.

Did you get maintenance records?
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  #3  
Old 02-22-2017, 02:39 PM
Here4bizness Here4bizness is offline
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Hey

Thanks a lot for the info. I'm had Bimmershop before but I'm used to driving the 3.0 x5's which I notice is pretty much the same as the 325. Reading the response you sent me, out of curiosity which are the best oem brands for BMW, also you mentioned not to have the tranny chemically flushed(please specify) Oh and I forgot to mention my car is a automatic
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Old 02-22-2017, 03:40 PM
marcozandrini marcozandrini is offline
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BMW sources a lot of parts from various companies. Most, but not all, are German. The bet thing to do when ordering parts is to:
- go to www.realoem.com
- enter the last 7 characters of the car's VIN
- hit enter and bookmark the page
- find the BMW part #
- go to either FCPEuro or ECS tuning

I prefer FCPEuro as it presents several parts for the same part #. The first is the BMW-branded part, always with the highest price. The second is the same part made by the same manufacturer without the BMW logo. This is called an original equipment manufacturer (OEM) part. The last is an aftermarket part, always the cheapest. I buy only OEM parts.

Some tranny shops promote a chemical flush for auto trannies. These chemicals, however, loosen grime inside the tranny. This grime can block small pages in the tranny. Some folks here do a tranny flush with the proper ATF. Basically, they disconnect the ATF cooler at the expansion tank, and pour in fresh ATF in the return line. The other line (from tranny) is drained into a receptacle.
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  #5  
Old 02-23-2017, 01:58 AM
Here4bizness Here4bizness is offline
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Wow I never had my tranny flushed before on my x5's. since I bought the 325xi at 162k on the clock, I want it to last until 3k(if it's possible) I'm guessing the steps you listed earlier will do.
As far as parts go, I shop at parts authority and Bavauto. The last question I have is , I wanted to add more horse power to the car. Besides getting high performance ignition coils,intake system and exhaust what else would I need to get it up there in terms of power?
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  #6  
Old 02-23-2017, 07:18 AM
lincolnshibuya lincolnshibuya is offline
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Quote:
Originally Posted by Here4bizness View Post
high performance ignition coils,intake system and exhaust what else would I need to get it up there in terms of power?

never heard of that unicorn stuff that bolts on to e46s. 1st time for me to hear that that there are high performance ignition coils..


https://www.facebook.com/diybmwe46/
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  #7  
Old 02-23-2017, 07:29 AM
Here4bizness Here4bizness is offline
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Go to Bavauto.com they sell high performance ignition/coil packs
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  #8  
Old 02-23-2017, 08:16 AM
lincolnshibuya lincolnshibuya is offline
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Originally Posted by Here4bizness View Post
Go to Bavauto.com they sell high performance ignition/coil packs
right, they are "advertised as high performance". Does it say how much power you gain?


https://www.facebook.com/diybmwe46/
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  #9  
Old 02-23-2017, 09:17 AM
Here4bizness Here4bizness is offline
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Don't remember exactly how much bro but it's a noticeable increase! You have other sites like "carid" and bmpdesign.com that sells performance parts. Check them out as well
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  #10  
Old 02-23-2017, 09:38 AM
lincolnshibuya lincolnshibuya is offline
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Originally Posted by Here4bizness View Post
Don't remember exactly how much bro but it's a noticeable increase! You have other sites like "carid" and bmpdesign.com that sells performance parts. Check them out as well
as I said they are "advertised..." don't be fooled if you are not getting exact numbers.. if you can't get the real numbers use the dynobutt gauge (as in noticeable) it always work.. of course you paid much for it and not expect something..

sounds like you've already tried it.


https://www.facebook.com/diybmwe46/

Last edited by lincolnshibuya; 02-23-2017 at 09:40 AM.
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  #11  
Old 02-23-2017, 10:06 AM
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Zeichen311 Zeichen311 is offline
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Originally Posted by Here4bizness View Post
Don't remember exactly how much bro but it's a noticeable increase! You have other sites like "carid" and bmpdesign.com that sells performance parts. Check them out as well
No, it is not. That's the placebo effect--"I bought these expensive ignition coils so my car MUST be faster/more powerful/shinier/cleaner!"

I had the BavAuto "high performance" coils in my first E46, which was a 325xi like yours. The only noticeable difference from stock was that spark plug life was significantly reduced. I attributed this to erosion from the stronger/hotter spark. Power, driveability, etc. were all notably unaffected.

The M54 engine is tuned to near-perfection straight from the factory. There just isn't a lot of power waiting to be unlocked by simple bolt-on modifications.
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Last edited by Zeichen311; 02-23-2017 at 12:30 PM.
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