Car engine repair Volkswagen Passat B3

Basic information about engines
VW PASSAT cars use 4-stroke liquid-cooled engines as a power plant, the crankshaft rotation axis of which in the engine compartment is located perpendicular to the direction of...

Key engine characteristics
1) with 8/90: power 66 kW (90 hp) at 5400 1/min; maximum torque 142 Nm at 2600 1/min; ignition and injection system: Mono-Motronic. 2) when using unleaded Super gasoline with an...

Removal and installation the engine
The engine is removed with the gearbox from above. Therefore, before removing the engine, you should also read the chapter " Transmission ". The exhaust and intake manifolds, as...

V-belt/toothed belt drive
1 - Upper timing belt casing 2 — bolt, 10 Nm 3 - toothed belt protective screen 4 - toothed belt 5 - tension roller 6 - fastening nut, 45 Nm 7 - rear toothed belt protective...

Loosening/tightening the timing belt
4-cylinder petrol engine Weakening Remove the upper belt guard. Place a wrench, such as HAZET 2587, on the tension roller. Loosen the tension roller mounting nut with a ring...

Removal and installation the timing belt
4-cylinder petrol engine Removal Before 9/93: Remove V-belt, see below in this chapter . From 10/93: Remove the V-belt and, if fitted, the tensioner roller, see later in this...

Camshaft / valve drive 4-cylinder
4-cylinder 8-valve engine 1 - bearing cap Note the offset location of the holes for fastening the cover relative to the bearing bed. The diesel engine camshaft has 5 bearings, 2 -...

Removal and installation the camshaft 4-cylinder
4-cylinder 8-valve engine Removal Remove the air filter, see chapter " Power supply system ". Remove the upper timing belt cover, see above. Remove cylinder head cover 9. Set the...

Cylinder head
4-cylinder 8-valve engine 1 - cork 2 - fastening nut, 10 Nm 3 - Stiffening bar 4 — cylinder head cover 5 - oil deflector 6 - cylinder head cover sealing gaskets 7 — cylinder head...

Removal and installation the cylinder head
Note: This describes the removal for a gasoline engine. Since not all model variants can be considered, before removing the cylinder head, you should check again whether all the...

6-cylinder camshaft chain drive
6-cylinder engine 1 - camshaft sprocket 2 — coupling for ignition distributor 3 — bolt, 100 Nm 4 — axle, 25 Nm 5 — tensioner bar 6 - tensioner for double-row roller chain, 30 Nm 7...

Removal and installation the cylinder head 6-cylinder
6-cylinder engine 1 - high voltage wire guide 2 - distributor cap with high voltage wires 3 - cylinder head cover 4 — cylinder head cover sealing gasket When replacing, pay...

Checking hydraulic tappets
All engines are equipped with hydraulic disc tappets. This reduces noise and eliminates the need for valve clearance adjustment as part of maintenance. When the engine is running,...

Removal and installation valves
Removal Remove the cylinder head, see above . Note: If valve drive parts are reused, they must be installed in their original locations. To prevent parts from being swapped, it is...

Replacing valve stem seals
All engines Worn valve stem seals are the cause of high oil consumption by the engine. The seals are installed on the top of the guides and remove oil from the valve stems. Since...

Checking the valve guides
When repairing engines with leaky valves, it is not enough to simply rework or replace the valves. In addition, the valve guides should be checked for wear immediately. This check...

Finishing of the seat/valve seat chamfer
Does not apply to 16-valve engines Valve seats with signs of wear or combustion influence can be refinished as long as the maximum permissible refinishing dimension is maintained....

Lapping valve seats
With perfectly machined valve seats and new valves, lapping the valve seats in the cylinder head is not necessary. Valves may only be lapped using fine-grained grinding paste. To...

Tensioning/replacing the V-belt
Note: Vehicles manufactured from 8/93 onwards, as well as models with a 1.9L turbocharged diesel engine and with G60 and VR6 engines, are equipped with a poly V-belt instead of a...

Tensioning/replacing the poly V-belt
Please note: Vehicles manufactured from 8/93 onwards, as well as models with a 1.9L turbodiesel engine and with G60 and VR6 engines, are equipped with a poly V-belt instead of a...

Jump starting from another car
When starting using the auxiliary jumper cable, please pay attention to the following points: The cross-section of the jumper cable for petrol engines with a displacement of up to...

Towing a car
Turn on the ignition to unlock the steering wheel and enable the direction indicators, alarm and, if necessary, windscreen wipers to function. Because the brake booster only works...

Visual inspection for oil leaks
If the engine has high oil consumption, it is necessary to find the places where the oil is leaking. To do this, check the following places: Open the filler cap and check the...

Checking the V-belt / poly V-belt
The condition and tension of the V-belt must be checked as part of maintenance every 30,000 km. The V-belt must be replaced when: excessive wear fringing of the side surfaces...

Checking the condition and tension of the toothed belt
Checking the timing belt tension Since incorrectly performed work can cause significant damage to the engine, it is necessary to pay attention to the precise execution of work...

Compression check
1) Except for the 118 kW (160 hp) engine. Compression testing allows you to draw conclusions about the condition of the engine. Namely, it allows you to determine whether the...

Engine fault diagnostics
When the engine does not start, a systematic approach is needed to identify the fault. In general, for the engine to start, 2 basic prerequisites must always be met. The fuel-air...

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