F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > F30 DIYs and Coding Discussions > Coolant Drain DIY - F30 335i
Post Reply
 
Thread Tools Search this Thread
      06-29-2016, 12:40 AM   #1
humbertob
Private First Class
humbertob's Avatar
United_States
20
Rep
182
Posts

Drives: '13 F30 335i Sport
Join Date: Jan 2013
Location: Laredo, Tx.

iTrader: (0)

Exclamation Coolant Drain DIY - F30 335i

Well today I just replaced the brownish coolant on my F30, here are the steps, could help someone, I hope:

1. Place your car securely on ramps
2. Remove the engine under cover, you need to remove all the 8mm bolts holding it in place
3. Remove the 8mm bolt holding the overflow tank, then unlock the 2 tabs holding the overflow tank in place
4. disconnect the upper coolant line from the overflow tank
5. disconnect the coolant level sensor below the overflow tank
6. disconnect the lower coolant line from the overflow tank
7. After you remove the upper and lower coolant lines the coolant will start to drain so be prepared with a bin to catch the old coolant
8. Remove the overflow tank completely and at this time rinse the overflow tank using the garden hose to clean the overflow tank from old coolant and sediments
9. Go back under the engine and unbolt the water pump clamp, be prepared with a bin or recipient under the engine, masive coolant amount will drain at this time
10. release the coolant hose from the water pump (coolant will drain)
11. after all the coolant is gone, replace the clamp using the attached bolt
12. Replace the under engine cover and all the 8mm bolts that hold it in place
13. Re-attach the lower coolant line to the overflow tank
14. Re-connect the coolant level sensor to the overflow tank
15. Re-attach the upper coolant line to the overflow tank
16. Replace the bolt that holds the overflow tank in place (8mm bolt)
17. Remove the bleeding screw (black screw) from the overflow tank
18. Using 50/50 BMW Blue Coolant/Distilled Water fill the overflow tank slowly until the coolant starts to escape from the bleeding hole at the overflow tank
19. Re-attach the bleeding screw
20. Replace the overflow tank cap
21. start the ignition on the car, without starting the engine
22. select the hottest temp on the a/c unit
23. select the lowest fan speed on the a/c unit
24. push the accelerator down to the floor for 10 seconds
25. you'll start hearing that the water pump starts working, it's bleeding the coolant system for you
26. Wait for 12-13 minutes until the water pump completes the bleeding cycle
27. You have changed your Coolant on your F30 at this point !

Thanks for all your support !
__________________
(OO)-(////)(\\\\)-(OO)
'14 F10 535i M-Sport
'13 E70 X5 | Wife's
'11 E90 335i | BMW Performance Edition / Son's
Appreciate 1
      06-29-2016, 08:31 AM   #2
mr_kay
First Lieutenant
mr_kay's Avatar
80
Rep
350
Posts

Drives: F30 335i
Join Date: May 2014
Location: NYC

iTrader: (0)

Perfect. Thank you. I was looking how to do this for when I do my oil housing gaskets this weekend. Up until this morning I was trying to test to see if the bleeding procedure worked on my car and I couldn't hear anything to confirm if it was running...Good to know I was doing the correct procedure.
Appreciate 0
      06-29-2016, 08:35 AM   #3
mr_kay
First Lieutenant
mr_kay's Avatar
80
Rep
350
Posts

Drives: F30 335i
Join Date: May 2014
Location: NYC

iTrader: (0)

Any reason to drain the reservoir tank first and not the water pump connection? Seems like it might be less messy that way.
Appreciate 0
      06-29-2016, 11:51 AM   #4
humbertob
Private First Class
humbertob's Avatar
United_States
20
Rep
182
Posts

Drives: '13 F30 335i Sport
Join Date: Jan 2013
Location: Laredo, Tx.

iTrader: (0)

Exclamation

Quote:
Originally Posted by mr_kay View Post
Any reason to drain the reservoir tank first and not the water pump connection? Seems like it might be less messy that way.
"The order of the factors does not alter the product !" The only reason that I first removed the overflow tank was to clean and rinse the tank from sediments and old coolant, but if yours is clean, you can even keep it attached, on my case there were sediments and I did prefer to clean the overflow tank before new coolant was poured.
__________________
(OO)-(////)(\\\\)-(OO)
'14 F10 535i M-Sport
'13 E70 X5 | Wife's
'11 E90 335i | BMW Performance Edition / Son's
Appreciate 0
      06-29-2016, 11:52 AM   #5
mr_kay
First Lieutenant
mr_kay's Avatar
80
Rep
350
Posts

Drives: F30 335i
Join Date: May 2014
Location: NYC

iTrader: (0)

Quote:
Originally Posted by humbertob
Quote:
Originally Posted by mr_kay View Post
Any reason to drain the reservoir tank first and not the water pump connection? Seems like it might be less messy that way.
"The order of the factors does not alter the product !" The only reason that I first removed the overflow tank was to clean and rinse the tank from sediments and old coolant, but if yours is clean, you can even keep it attached, on my case there were sediments and I did prefer to clean the overflow tank before new coolant was poured.
Gotcha. Thanks!
Appreciate 0
      07-31-2017, 11:05 PM   #6
rugbyfool89
New Member
0
Rep
6
Posts

Drives: F30 335i Sport
Join Date: Jan 2016
Location: Wichita Falls, Texas

iTrader: (0)

Just wanted to say thank you. Pretty cool how the car bleeds itself.
Appreciate 0
      08-01-2017, 10:09 PM   #7
jdr78569
Lieutenant
jdr78569's Avatar
53
Rep
405
Posts

Drives: F31 328d sport wag
Join Date: Dec 2016
Location: GA

iTrader: (0)

Do you have picture on how to unclip the lower hose? I stopped at that point since it was getting late and i didn't see how i could unclip it. I know BMW coolant is "lifetime" and mines clean i just wanted to do a drain and fill
Appreciate 0
      08-04-2017, 11:04 AM   #8
reyoasian
Private First Class
Canada
19
Rep
184
Posts

Drives: 340xi MPPSK
Join Date: May 2017
Location: Toronto

iTrader: (0)

What's the spec of the coolant required?
Appreciate 0
      08-04-2017, 12:03 PM   #9
Sanelko
Private First Class
Sanelko's Avatar
17
Rep
107
Posts

Drives: 2012 Jet Black 328i
Join Date: Jan 2016
Location: Seattle

iTrader: (0)

Quote:
Originally Posted by jmb2027 View Post
What's the spec of the coolant required?
I think it's BMW N60069.0 (blue in color). Other than the BMW coolant, the only other ones I know of are Pentosin and Rowe.
Appreciate 0
      08-04-2017, 01:15 PM   #10
_bdiddyb_
First Lieutenant
88
Rep
398
Posts

Drives: 2013 335i
Join Date: Aug 2013
Location: California

iTrader: (1)

It was a bitch to unclip the hose from the water pump to drain the coolant. What ever happened to the drain plug at the bottom of the radiator??? C'mon BMW !!! Bleeding procedure was very smart.

On another car maker, the Lexus IS350 was completely opposite. Draining was a cinch, but bleeding procedure was asinine.
Appreciate 0
      08-15-2017, 08:56 PM   #11
vifferfun
Private
Canada
8
Rep
83
Posts

Drives: 2012 BMW 335i Sedan 6MT
Join Date: Jul 2011
Location: Toronto, ON

iTrader: (0)

Thanks so much for posting these instructions! I just had to bleed my system (after replacing a blown coolant hose) so I just had to complete steps 17+. It was really easy!
Appreciate 0
      12-17-2017, 11:46 PM   #12
GTBrandon
Lieutenant
GTBrandon's Avatar
United_States
127
Rep
567
Posts

Drives: F34 M-Sport
Join Date: Dec 2016
Location: Northern VA

iTrader: (2)

Garage List
2014 335xi GT  [5.00]
Any idea on how much coolant the system took total? I'm wondering whether to use one or two (or more) Gallons of the BMW coolant after mixing with water
__________________
GT stands for Giant Trunk, right?
www.youtube.com/Channel/UCJdwA05Tsz3WHJFBHXWi9JA

Frank Smith ECU Flash, VRSF DP, CTP FMIC, FTP CP, and K&N Drop-In
Appreciate 0
Post Reply

Bookmarks

Tags
diy coolant drain

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 02:07 PM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST