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Coolant leak somewhere
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09-05-2018, 01:09 PM | #1 |
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Coolant leak somewhere
Hi all,
Wondering if anyone can give some ideas as to how I can find where my coolant is leaking from.....I've wiped everything clean and had the car running for 10 mins with a/c on and off and nothing ever comes out.....took a 45 mile drive to work and this happened
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2010 335i Rwd 6spd
MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters |
09-05-2018, 01:36 PM | #2 |
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10 minutes might not be enough time for the engine to heat up enough to the point that coolant starts cycling. Did the fan kick on?
I say top it off with distilled water and try running the coolant bleed procedure to locate the source. There are plenty of how-to videos for this since it's a step during the waterpump replacement. I'm not sure if this will reveal the source, so if not your best option would be to run the car for 20 minutes, revving it up to 2-3k RPMs every once in a while to help heat it up.
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2011 E92 335is, Space Grey/Coral Red, 6MT.
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09-05-2018, 02:07 PM | #3 |
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Ok. The car was definitely warm and yes the fan was on. In fact the fan being on more often was what made me open the hood in the first place. I'll try the bleed part and see if I get anywhere.
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2010 335i Rwd 6spd
MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters |
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09-05-2018, 02:11 PM | #4 |
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Probably the pipe running across the engine bay over the fan. It's known to get very brittle and crack
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09-05-2018, 02:41 PM | #6 | |
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2010 335i Rwd 6spd
MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters |
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09-06-2018, 07:13 AM | #7 |
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Yeah, but I'm more or less just looking at the spray pattern. All in all those houses are pretty cheap to fix.
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2015 435i grand coupe xdrvie (current)
2006 F250 powerstoke CCSB (current) 2014 M235i Black on Red (SOLD) / 08 e90 335i MT Pure Stage 2 High flow (SOLD) 08 128i 6MT (SOLD) / 08 335i 6MT Pure stage 1 (SOLD) |
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09-06-2018, 07:26 AM | #9 | |
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Replace that hose and also replace the upper rad hose (Par #: 17127540127) that the vent hose connects into. Have the upper rad hose ready because the nipple can break off as it gets brittle over the years. Don't forget you'll need a hose clamp where vent hose connects to upper rad hose and at the coolant tank, as it is crimped from the factory. Also, update your car info under your user on the left so we know what year, chassis and model it is. Last edited by Wolf 335; 09-06-2018 at 07:32 AM.. |
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09-08-2018, 12:35 PM | #10 |
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just a thought, pull out the fan, and look at the connection on the oil filter housing, the way the coolant is splashing it looks like it is spraying to the front of the car, then the fan is blowing it to the drivers side of the car, if the fan spins that way, i can not remember i could be wrong, but then go on ebay and buy this
https://www.ebay.com/itm/1pc-Water-H...72.m2749.l2649 good insurance for the coolant system |
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09-08-2018, 02:58 PM | #11 | ||
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Chris@VargasTurboTech1932.00 |
09-08-2018, 05:24 PM | #12 | |||
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2010 335i Rwd 6spd
MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters |
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09-10-2018, 07:04 AM | #13 |
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09-10-2018, 09:18 PM | #14 |
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Figured. Same thing happened to me, and of course the upper radiator hose busted during install and I had to replace that too. Dumbass design, as usual.
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2008 E61 535xi Sport Wagon / 100k Miles / Deep Sea Blue Metallic / Natural Brown Interior / MHD Stage 1 91 CA-Octane Tune.
SOLD - 2009 E90 335i M-Sport Sedan / 143k Miles / Alpine White Exterior / Chestnut Brown Interior / Mishimoto FMIC / xHP Stage 2. |
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