1999 Audi A6 Water leak

MDANIELS

MEMBER
1999 AUDI A6
4 CYL
FWD
MANUAL
180,000 MILES

I have a Audi A6 (1999 - 1.9TDI)

It is leaking fluid underneath the car, the fluid seems to be coming out from under the passenger seat. The fludi is leaking outside the car

I have check all inside the car - No leaks, nothing wet
I have check the engine, thermostat etc and still no leaks.

Any suggestions are greatly appreciated

5 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,
This sounds as if it is the A/C drain tube draining excess moisture from the evaporator, part of the function of the A/C system is that it dehumidifies the air as it is cooled, this excess moisture is expelled via a drain tube, ask your mechanic to verify that this is what you are seeing.

Mark (mhpautos)

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Tuesday, October 27th, 2009 AT 4:18 AM

MDANIELS

MEMBER
3 POSTS

Does this mean the AC needs re-gassing?

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Tuesday, October 27th, 2009 AT 7:24 AM

MHPAUTOS

MECHANIC
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No not at all, if this is the A/C drain that you are seeing, this is a normal part of the cycle, the more humid the weather the more it will drip.

Mark (mhpautos)

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Tuesday, October 27th, 2009 AT 7:47 AM

MDANIELS

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3 POSTS

The reason im concerned is it winter. Ish in the uk and its dripping like a tap.

Obviously when you turn the car off it continues for a little while then stop.

If as you say its working fine could it be another issue?

Thanks for all the help so far

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Tuesday, October 27th, 2009 AT 8:44 AM

MHPAUTOS

MECHANIC
31,937 POSTS

If it continues to drip even with the A/c not working, then you may have a small leak with in the heater core, so it would be prudent to have the cooling system pressure tested just for piece of mind, do this next,

Mark (mhpautos)