How to Unblock the Air Hose on a Volkswagen Cabrio

Air is one of the three ingredients needed for the combustion reaction to take place. Without air, engines do not perform properly or at all.

Clogged air hoses can cause a variety of issues with a Volkswagen Cabrio, all generally revolving around the car's ability to idle correctly and start in cold weather. When the proper amount of air is not moving through the engine's air systems the car will either stall or over-rev when stopped. The result is a car that continually dies or accelerates as soon as you release the brake, even when the accelerator has not been depressed.

Things You'll Need

• Screwdrivers

Instructions

Removing the air hoses and ducts

1. Loosen the clamps and disconnect the air hoses from the air cleaner.

2. Disconnect the warm-air duct from the base of the cleaner.

3. Remove the airflow sensor and cleaner.

4. Disconnect the vacuum hose air intake temperature regulator vacuum switch, taking care to remember where how they were positioned.

5. Pull the air cleaner toward the engine block and take out the intake hose from the port on the fender.

Unclogging the hoses

1. Examine each hose and ducts for debris that could be clogging the system.

2. Remove the clog with carburetor and chock cleaner if the clog is sticky or gooey.

3. Reinstall hoses after allowing time for the hoses to dry.

Tips & Warnings

• It's easiest to check for leaks and worn hoses when they are removed from the engine so that you can replace them as needed.

References

• "Haynes VW Golf and Jetta Automotive Repair Manual"; George Parise, Mark Coombs, Spencer Drayton, John H. Haynes; 1997