Water leak E90 335i

[Iceman12596]

Gents, got a small water leak coming from my car, driving home yesterday, low coolant warning came up, stopped at home and a little white smoke from the left kidney grill, I can see on the pipes there are water marks, so not sure if I need to replace radiator, there is also a slight hissing noise from the middle of the engine bay, anybody have any suggestions or experienced this before ?

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Also wondering if 320,323,325 all use the same radiators ?

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[Luis Malhou]

Remove the black cover above the kidneys. running along the top of the radiator there should be a thin black plastic pipe that runs to the water tank. these pipes are known to break. replace the pipe with a thin alu 8mm pipe.

Not saying its the problem in your case, but they are a common problem. check it first.

 

[Iceman12596]

Will definitely check that bud, thanks

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[Neve24]

Hi, I had the same issue on my 320i. Pipe gets brittle with age. Bought the pipe from the dealer & replaced it myself

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[Woodies]

Snap! Mine broke in exactly the same place as the pic. White smoke/steam pissed out. You should be able to see it quite easily when the car is running


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[Yuben]

Can be a whole host of things. On mine I had to replace the radiator which had a Crack where the top hose joins. Then it was the thermostat, and lastly the waterpump. All contributed to water leaks

 

[Luis Malhou]

Do yourself a favour. Go to a hardware and buy aluminium tubing and 2 clamps. Those pipes from BMW are flimsy plastic with thin alu tubing only on the ends for a stupid stealer price!!

 

[Iceman12596]

Do yourself a favour. Go to a hardware and buy aluminium tubing and 2 clamps. Those pipes from BMW are flimsy plastic with thin alu tubing only on the ends for a stupid stealer price!!

Hey bud, found the leak. It was the pipe I literally just moved it and it broke, so bought some aluminium tubing and voila working like a baws, thanks bud

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[Yuben]

Good call Luis :clapper:

 

[Iceman12596]

Best builders mod ever ! Lol

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[Yuben]

Do u perhaps have any pics for the clamp and pipe :coolShake:

 

[Iceman12596]

Do u perhaps have any pics for the clamp and pipe :coolShake:

Will take a pic and post for ya tmrw, i used the BMW clamps the car came with, they seem pretty solid and grip well.

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[Bandile]

Hi, I had the same issue on my 320i. Pipe gets brittle with age. Bought the pipe from the dealer & replaced it myself

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+1

Had the same issue on my E90 as well.