Hi i have a vw golf mk4 1.6 and i noticed that when i rev my car i se lots of bubbles in the coolant reseivor. Im not loosing oil, or water and the car is not overheating either could it be a sign of blown gasket or just exhaust gasses? Thank you
My car has 131000 miles.
My car has a manual transmission.
Hello - yes, this bubbles in the coolant reservoir could indicate a blown headgasket. There is a specific test which determines if the bubble in the reservoir contain combustion gases. This would confirm a blown headgasket. Checking for low compression on 2 adjacent cylinders can also indicate a blown head gasket. I recommend a loss of power inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing