Skoda Workshop Service and Repair Manuals > Octavia Mk2 > Power unit | 1.6/55; 66; 77 kW TDI CR Engine | Exhaust system | Exhaust gas recirculation system | Check changeover of radiator for exhaust gas recirculation

Check changeover of radiator for exhaust gas recirculation

Special tools and workshop equipment required

t	Hand vacuum pump, e.g. -VAS 6213-

Work procedure

Note

The vacuum setting element for change-over flap is accessible from below.

–	Remove the sound dampening system → Body Work; Rep. gr.50.

–	Unbolt heat shield for right drive shaft.

–	Detach vacuum hose from vacuum setting element.

–	Connect hand vacuum pump to vacuum setting element.

–	Actuate the hand vacuum pump in order to generate negative pressure.

l	The vacuum setting element must open the change-over flap up to the stop at maximum 0.08 MPa (0.8 bar) negative pressure and in case of ventilation close it up to the stop -arrows-.

Note

t	For this test the opening of the change-over flap can be performed in jolts. In driving mode the change-over flap opens suddenly due to the large negative pressure volume.

t	The closing of the change-over flap must be carried out suddenly when ventilating (e.g. detach vacuum hose).

If the vacuum setting element does not open or close the change-over flap up to the stop:

–	Replace radiator for exhaust gas recirculation with vacuum setting element → Chapter.

Skoda Workshop Service and Repair Manuals