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Old 04-12-2019, 11:30 PM   #1
OnTheFence
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What else to replace while replacing OFH Gasket ?

Helping a friend replace his OFHG.

His car
http://www.realoem.com/bmw/enUS/part...MW-325xi&mg=11

Replace #1,6,15
(2 pulleys and Belt)
http://www.realoem.com/bmw/enUS/show...diagId=11_2190

#15
(VANOS line)
http://www.realoem.com/bmw/enUS/show...diagId=11_2170

#4
(Fan shroud rivet)
http://www.realoem.com/bmw/enUS/show...diagId=17_0139

Anything else ?
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0714,0171: It was the MAF. NOT intake boots. NOT vacuum lines. NOT Fuel pump

Last edited by OnTheFence; 04-12-2019 at 11:39 PM.
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Old 04-12-2019, 11:38 PM   #2
OnTheFence
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Notes from when I did mine
https://forum.e46fanatics.com/showth...1108819&page=2

Quote:
To summarize:
Replaced all 4 PS hoses and PS reservoir. Top tip: Used the 15mm wrench to press against the 2 quick-disconnect lines
Removed electric fan.
Replaced serp. belt and 2 pulleys.
Moved alternator. (That was scary for me)
Top Tip: Hammer that lower bolt thread sleeve back to flush by hammering the bolt.
I used a 4lb hammer and hit it about 50 times until it finally started to move. Once it moved, it's just a few more taps.
Replaced OFHG and Vanos oil line
Topped off the ATF in the PS reservoir.
Quote:
UPDATE: Here were the main steps:
1) Remove airbox.
2) Remove fan
3) Remove belt
4) Remove alternator
5) Remove OFHG
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0714,0171: It was the MAF. NOT intake boots. NOT vacuum lines. NOT Fuel pump
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Old 04-13-2019, 02:37 AM   #3
LeverThis
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Its a little easier to replace the ccv with the oil filter housing removed. Also you will have a much better view of the coolant hard pipes where they go into the head, so inspect for any signs of leaks.
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Old 04-13-2019, 06:55 AM   #4
markusmarkus
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Step 1: remove the ground/negative/earth cable from the battery if you’re going to mess around with the alternator. Just saying.
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Old 04-13-2019, 07:05 AM   #5
DrewG5
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Quote:
Originally Posted by markusmarkus View Post
Step 1: remove the ground/negative/earth cable from the battery if you’re going to mess around with the alternator. Just saying.
Sounds like personal experance. Ouch..

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Old 04-13-2019, 10:48 AM   #6
beechbmw
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Just a random thought from my humble and meager experience, you may also want to consider replacing the voltage regulator on the alternator while the alternator is out of the car. This would be if the car and or voltage regulator has more than ~150,000 miles on it. Just a thought coming from 'I wish I would have done that while I was in there'.
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Old 04-13-2019, 04:34 PM   #7
Chris C
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+1 on the voltage regulator like beechbmw suggested. When you compare a new one with a worn out one you'll see a big difference.
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Old 04-14-2019, 07:11 AM   #8
markusmarkus
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Be advised that BMW sourced alternators from Bosch and Valeo, a French company. They are not interchangeable without considerable work. The only way to tell which alternator is in your car is to read the label at the back of the alternator. Hopefully it’s a Bosch as the voltage regulator is fairly cheap.
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Old 04-15-2019, 06:54 AM   #9
OnTheFence
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Friend's car has 70k and I doubt I will bother changing the voltage regulator.
But, I will note the alternator brand upon removal.

Valeo VR
12317551153
http://www.realoem.com/bmw/enUS/show...diagId=12_1083

Bosch VR
12317559183
http://www.realoem.com/bmw/enUS/show...diagId=12_1084
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0714,0171: It was the MAF. NOT intake boots. NOT vacuum lines. NOT Fuel pump
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Old 04-19-2019, 01:00 PM   #10
OnTheFence
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Friend has a Valeo 120

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0714,0171: It was the MAF. NOT intake boots. NOT vacuum lines. NOT Fuel pump

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