Hi All,
I have a coolant leak from the expansion tank on the radiator. It gets really bad when the car is up to temp and the source is what looks like a very fine hole mid way up. I can see a very fine high pressure jet coming out of the tank.
I've never used a sealant in the coolant system before. the question i have is will this work to fix the issue? Appreciate you can only go on my description but given how fine the spray is the hole must be tiny.
Thanks
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Radiator Expansion Tank Leak
- 1000rr
- Senior Member
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- Joined: Thu Oct 13, 2016 10:53 pm
Radiator Expansion Tank Leak
Don’t use a sealant. Replace the tank, they are cheap as chips.
Sealant buggers up your cooling system.
Sealant buggers up your cooling system.
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- Member
- Posts: 113
- Joined: Mon Jun 17, 2019 2:44 pm
Radiator Expansion Tank Leak
why do they sell them? appreciate all the guff on the bottles say they are safe but why does it bugger them up?
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OnlineMr Tidy
- Legend
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- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Radiator Expansion Tank Leak
I suppose they are available because some people must buy them!
I'd never use one though.
How is a jar of sealant supposed to work out whether a gap is a leak, or is there to allow the coolant to flow?
I'd never use one though.
How is a jar of sealant supposed to work out whether a gap is a leak, or is there to allow the coolant to flow?
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Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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Radiator Expansion Tank Leak
NanoBots obviously, all for £7.99
I've ordered a new tank!