Volkswagen New Beetle. Manual

Fig. 3: Locating Engine Code (AVH, AZG, BDC, BEV & BGD - New Beetle)
Courtesy of VOLKSWAGEN UNITED STATES, INC.

COMPONENT LOCATIONS

COOLING SYSTEM IDENTIFICATION

NOTE:

Three letter code indicates engine identification code. For location of engine
code, see ENGINE IDENTIFICATION .

2003 Volkswagen New Beetle GLS

2002-04 ENGINE COOLING Specifications & Drive Belt Routing - 2.0L (AEG, AVH, AZG, BBW, BDC, BEV & BGD

Engine Code)

Fig. 4: Identifying Cooling System Components & Coolant Flow (AEG, AVH, AZG, BDC, BEV & BGD -
New Beetle)
Courtesy of VOLKSWAGEN UNITED STATES, INC.

DRAINING, FILLING & BLEEDING

COOLING SYSTEM PRECAUTIONS

Golf & Jetta

For all except 2004 Golf and Jetta with BEV engine code, use only coolant additive G12 meeting specification
VW 774 D. G12 coolant is Red in color. G12 must not be mixed with any other additives. If fluid in expansion
tank is Brown, this is an indication that G12 has been mixed with another type of coolant. In this case, coolant
must be changed.

G12 coolant additive may be used in older vehicles when original coolant is drained and cooling system is
flushed. Contaminated coolant must be drained immediately and cooling system flushed. See SERVICING .
Also, if radiator, heat exchanger (heater core), cylinder head or cylinder head gasket, have been replaced, flush
cooling system and replace engine coolant.

New Beetle

Use only coolant additive G 12 meeting specification VW 774 F. G 12 coolant is Lilac (Purple) in color. Red
coolant G12, meeting specification VW 774 D, can be mixed with G 12 Lilac coolant. G 12 must NOT be
mixed with any other additives. If fluid in expansion tank is Brown, this is an indication that G 12 has been
mixed with another type of coolant. In this case, coolant must be changed.

G 12 coolant additive may be used in older vehicles when original coolant is drained and cooling system is
flushed. Contaminated coolant must be drained immediately and cooling system flushed. See SERVICING .
Also, if radiator, heat exchanger (heater core), cylinder head or cylinder head gasket, have been replaced, flush
cooling system and replace engine coolant.

DRAINING, FILLING & BLEEDING COOLING SYSTEM

Golf & Jetta

CAUTION: On model year 2004 Golf and Jetta, engine code BEV uses G12 coolant

that is Lilac (Purple) in color. Refer to TSB Group 19 No. 02-01, dated Dec.
20, 2002. See COOLANT (ANTIFREEZE), MIXING PRECAUTIONS .

NOTE:

Cooling system precautions reference to TSB Group 19 No. 02-01, dated Dec.
20, 2002. See COOLANT (ANTIFREEZE), MIXING PRECAUTIONS .

WARNING:

Cooling system is pressurized, when engine is at operating temperature.
Use caution and use other appropriate protective gear (safety glasses and
gloves) when servicing cooling system. Slowly and carefully release

2003 Volkswagen New Beetle GLS

2002-04 ENGINE COOLING Specifications & Drive Belt Routing - 2.0L (AEG, AVH, AZG, BBW, BDC, BEV & BGD

Engine Code)

1. Turn engine off, and allow to cool. Open cap on coolant expansion tank. Raise and support vehicle.

Remove noise insulation panel from below engine compartment. See Fig. 5 .

Fig. 5: Identifying Noise Insulation Mounting Points

system pressure, before performing any repairs.

CAUTION: On model year 2004 Golf and Jetta, engine code BEV, uses G12 coolant

that is Lilac (Purple) in color. Refer to TSB Group 19 No. 02-01, dated Dec.
20, 2002. See COOLANT (ANTIFREEZE), MIXING PRECAUTIONS .

2003 Volkswagen New Beetle GLS

2002-04 ENGINE COOLING Specifications & Drive Belt Routing - 2.0L (AEG, AVH, AZG, BBW, BDC, BEV & BGD

Engine Code)

Volkswagen New Beetle. Manual - part 943