volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Relays and Modules - Brakes and Traction Control > < Brake System Vacuum Pump V192, Electrical Check|Page 4927
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Vacuum Pump: Service and Repair

Vacuum pump for brake booster, removing and installing (vehicles with Diesel engine) 

Removing 
^

Remove retainer for wiring harness from vacuum pump.

^

Loosen vacuum hose clamp (arrow -A-) and remove hose from pump.

^

Remove bolts (arrow -B-) on flange.

^

Remove vacuum pump.

Note:  Vacuum pump cannot be repaired.

Installing 

Note:  When installing vacuum pump be sure that follower engages correctly with camshaft.

^

Install bolts (arrows -B-) on cylinder head flange and secure vacuum hose with clamp (arrow -A-).

^

Check function of check valve -A-
-

Air must pass through in direction of arrow.

-

Valve must stay closed (no air passes through) in opposite direction.

Relays and Modules - Brakes and Traction Control > < Brake System Vacuum Pump V192, Electrical Check|Page 4927