2003 Volkswagen Jetta Loosing Coolant

Tiny
DCCOLVIN
  • MEMBER
  • 2003 VOLKSWAGEN JETTA
  • 4 CYL
  • 2WD
  • MANUAL
  • 75,000 MILES
I have a 2003 VW Jetta 1.8T, it drives perfect. However, the coolant doesn't return to the reservoir, sometimes when I release the reservoir cap it will start to rise. Sometimes it doesn't. No smoke or sweet smell from the exhaust. Could it be that the reserevoir cap is not sealing tight?
Saturday, July 5th, 2008 AT 10:49 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi dccolvin,

No, it is not the reservoir cap.

The system is under pressure and when you release the cap, pressure will escape thus the rise in the level.

The coolant is recycling when the engine is started so you would not see much difference in the level.

If the coolant keeps disappearing, you need to check for leakages. Check hose joints.
Was this
answer
helpful?
Yes
No
Sunday, July 6th, 2008 AT 12:15 AM

Please login or register to post a reply.

Related Leak Content

Cooling System Pressure Test For Leaks
VIDEO
Cooling System Pressure Test For Leaks
Instructional repair video
Coolant Leak Symptoms
GUIDE
Coolant Leak Symptoms
Engine coolant is essential for regulating your vehicle’s temperature. A coolant leak can lead to serious engine damage if not addressed quickly. Below, we outline the...
VIEW MORE