|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Replace coolant hoses with water pump and thermostat?
|
|
10-18-2018, 11:46 PM | #1 |
New Member
7
Rep 12
Posts |
Replace coolant hoses with water pump and thermostat?
I'm at 105k now and I'm going to replace the water pump and thermostat real soon. Would you guys recommend replacing all the coolant hoses as well?
|
10-19-2018, 04:07 AM | #2 |
Private
34
Rep 69
Posts |
Yes. My car is two years newer and I’ve had to replace a couple due to them being brittle and breaking at the slightest touch. Good preventative maintenance and you won’t have to worry for another ten years.
__________________
2009 335i Coupe M-Sport MT 136,000 miles
2013 Mini JCW 16,000 miles 2000 Lexus LS400 82,000 miles |
Appreciate
0
|
10-19-2018, 10:21 AM | #3 |
Major
2197
Rep 1,322
Posts |
Not all but all of the ones you are going to touch. Also probably not a bad idea to replace the one coming from below the oil filter housing and the return one that comes across the top of the radiator. The former because doing the water pump is a big PITA and you dont want to have to go in there anytime soon, so replacing all of the ones that touch that saves you the trouble. The latter because those two have plastic fittings incorporated in them that crumble at the mere thought of touching them.
The big hoses that are easy to replace, Id wouldn't. I also wouldn't be pulling the manifold to get to all of those. Tons of money and PITA for hoses that dont tend to fail catastrophically anymore. However, if you do have to pull the manifold to do the starter sometime in the future, yeah replace everything under it. |
Appreciate
0
|
10-20-2018, 08:41 PM | #4 |
ziddak
17
Rep 38
Posts |
What brand water pump are you guys using? Anyone try one other than OEM?
I know changing these are a bear, so I would tend to get an OEM, however if they have such a fail rate, maybe another brand might hold up better? Comments appreciated. |
Appreciate
0
|
10-20-2018, 10:00 PM | #6 | |
Colonel
813
Rep 2,868
Posts |
Quote:
Is it worth replacing or doing any other work when replacing water pump/thermo?
__________________
2019 X3 m40i:Carbon Black:Executive:Premium:Adaptive:Vernasca:699M:HK: Ambient:IND trim:M Mirrors:15mm spacers:Maxton lip:20% tint windows/pano:dsg paddles:TLG mudflaps
2008 328i E90 Jet Black:6MT:RWD:Premium:Sport:Xenon:MTEC V3 AEs:Front Splitters:CF spoiler:19" VMR FF v710 |
|
Appreciate
0
|
10-21-2018, 09:09 AM | #7 |
Private First Class
16
Rep 105
Posts |
You should definitely replace the hose that connects the waterpump and thermostat as it has to be removed from the car to replace the waterpump.
|
Appreciate
1
mweisdorfer1900.00 |
10-21-2018, 03:25 PM | #8 | |
Brigadier General
681
Rep 3,696
Posts |
Quote:
but i wish i had known to do the expansion tank hose because 2 years later and 60k miles that "straw" got a leak and caused me to tow the car home and the spray of coolant at the pulleys caused them all to squeal and a soaked belt which all made them suspect so i had to do that entire pulley kit job again So i would recommend doing the following: 1) pulley/tensioner kit 2) as part of that job they need to remove they coolant bypass hose (usually it breaks so change that entire hose) 3) its suggested to change the expansion tank hose 4) but as you try to change the expansion tank hose it will break the nipple on the upper raditor coolant hose so change that too 5) might as well do a coolant flush and the expansion tank and cap as well while at it 6) since everything is already apart might as well do the OFHG 7) if you are OCD like me i changed my starter as well since it has 11 years and 167k miles 8) if your an n54 motor... this might be a good time to change out all the boost vacuum lines and the boost solenoids. 9) if its time to do spark plugs soon... this is a good time to do it at this point you are solid for another 100k miles consider getting the kits/parts from fcpeuro for free lifetime replacment warranty FTW Last edited by fazman; 10-21-2018 at 03:32 PM.. |
|
Appreciate
0
|
10-24-2018, 11:56 PM | #9 |
New Member
7
Rep 12
Posts |
Appreciate the help y'all. For clarification, can you guys identify which specific hoses that I should replace in the pictures below?
Definitely #1 in both pictures, which is the water pump to thermostat hose. http://www.realoem.com/bmw/enUS/show...diagId=11_3972 http://www.realoem.com/bmw/enUS/show...diagId=17_0705 |
Appreciate
0
|
10-25-2018, 12:08 AM | #10 |
New Member
7
Rep 12
Posts |
I think #7 is the hose that fazman and ryan stewart mentioned that breaks, correct?
Forgot how I found this page but I think this may be the solution to it. https://www.youcanic.com/guide/bmw-e...g-may-fail-fix Let me know what you guys think. |
Appreciate
1
Igor_M52129.00 |
10-25-2018, 12:51 AM | #11 |
New Member
7
Rep 12
Posts |
I replaced the OFHG and Oil Cooler Housing Gasket 2 years ago so I'm good there.
Here's a list of my maintenance plans: - Water pump, thermostat, and hoses - Coolant flush - Accessory belt, pulleys and tensioner - Valve cover gasket and valve cover - Boost vacuum lines and boost solenoids (thanks fazman, did research after you mentioned it) - Spark plugs - Air filter and microfilter - Oil pan gasket - Walnut blast The last two I thought of doing myself also, but I think it would take too much time for me so I think I'll have a shop do the job. Kinda went off topic but if you guys have any other suggestions for maintenance, let me know! |
Appreciate
0
|
10-25-2018, 12:04 PM | #12 | |
Colonel
1005
Rep 2,239
Posts
Drives: 2007 328i / 2014 M235i
Join Date: Nov 2017
Location: Ontario Canada
|
Quote:
|
|
Appreciate
0
|
10-25-2018, 12:41 PM | #13 |
Captain
214
Rep 987
Posts |
The flange on number 7 will break under casual driving conditions- has happened to myself and others. Also I would pick up some overflow tank reservoir bleeder screws, the usual auto parts stores will have them and they to break
__________________
MHD | BMS | VRSF | APEX | RECARO | TC Kline | BERK | Turner Motorsport | Eibach | BMW Performance
|
Appreciate
0
|
10-26-2018, 07:30 AM | #15 |
Private
10
Rep 53
Posts |
replaced hoses with pump and thermostat
I did the replacement last weekend. Did the upper and lower hoses as part of the job. Got the OEM kit from ECS Tuning. One tip - the hose that comes off the back of the water pump is a bear to reach. In retrospect I wish I had paid more attention to the angle of the hose on the old pump when I removed it and attached the new hose just like that before installing the pump. Steve
|
Appreciate
0
|
10-26-2018, 07:44 AM | #16 | |
Major
2197
Rep 1,322
Posts |
Quote:
Also I forgot, go ahead and order a radiator drain screw assembly for your radiator. Its fragile as hell, just have it just in case those tabs break. |
|
Appreciate
0
|
10-26-2018, 12:03 PM | #17 |
Colonel
1005
Rep 2,239
Posts
Drives: 2007 328i / 2014 M235i
Join Date: Nov 2017
Location: Ontario Canada
|
Why not just use the Aluminum adapter found on ebay and keep the rubber hose if it is okay.
|
Appreciate
0
|
10-26-2018, 12:15 PM | #18 | |
Captain
214
Rep 987
Posts |
Quote:
330i's pump goes a few years later- and my slotted head just barely grazes the screw and the head just falls off like an autumn leaf off a tree. Replace that peacock and screw lol
__________________
MHD | BMS | VRSF | APEX | RECARO | TC Kline | BERK | Turner Motorsport | Eibach | BMW Performance
|
|
Appreciate
0
|
10-26-2018, 08:12 PM | #19 |
Colonel
813
Rep 2,868
Posts |
Who is the manufacturer of the OE water pump?
The other brand pump I see a lot is the perburg (spelling?) , but not sure if they make the OEM pump or not? Or if it’s worth the extra money getting a “bmw branded” pump vs. another brand one?
__________________
2019 X3 m40i:Carbon Black:Executive:Premium:Adaptive:Vernasca:699M:HK: Ambient:IND trim:M Mirrors:15mm spacers:Maxton lip:20% tint windows/pano:dsg paddles:TLG mudflaps
2008 328i E90 Jet Black:6MT:RWD:Premium:Sport:Xenon:MTEC V3 AEs:Front Splitters:CF spoiler:19" VMR FF v710 |
Appreciate
0
|
10-27-2018, 09:41 AM | #20 | ||
Major General
3940
Rep 7,216
Posts |
Quote:
Quote:
|
||
Appreciate
0
|
10-27-2018, 11:23 AM | #21 |
Private
38
Rep 85
Posts |
Pierburg manufactured the N52 pump. I used them on both my N52's. Wouldn't recommend anything but BMW Pierburg or the OEM Pierburg. Pierburg published an analysis of a chinese compatible that had significant design problems. Note this wasn't a "Pierburg" ripoff brand; just a poor quality compatible. Pierburg replacement kit from FCPEuro is the best price I've found from a name house, at US$375 or so.
Anyway: One original BMW Pierburg failed at 60K miles (E60); the other original BMW Pierburg I PM'd at 100K (E91). The 100K was giving signs of failure. VDO Continental did the N54. I've read the VDO has a problem with the plastic case cracking/leaking.
__________________
2007 530I, 2007 328xiT
2003 325XI (gone) 2004 530I (gone) 2001 530I (gone) BMW CCA Member 15+ Years Last edited by banglenot; 10-27-2018 at 11:29 AM.. |
Appreciate
0
|
10-27-2018, 05:51 PM | #22 | |
Colonel
813
Rep 2,868
Posts |
Quote:
The pierburg pump kits are like $375ish, the bmw branded ones are another or so at $475ish. I guess it’s not really worth the money or up charge to have the “bmw branded” one if it’s just a rebranded pierburg pump.
__________________
2019 X3 m40i:Carbon Black:Executive:Premium:Adaptive:Vernasca:699M:HK: Ambient:IND trim:M Mirrors:15mm spacers:Maxton lip:20% tint windows/pano:dsg paddles:TLG mudflaps
2008 328i E90 Jet Black:6MT:RWD:Premium:Sport:Xenon:MTEC V3 AEs:Front Splitters:CF spoiler:19" VMR FF v710 |
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|