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Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

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Pressures, checking on vehicles<br />

Página 4 de 33<br />

Setting on heater controls:<br />

- Press A/C button and Rec- or<br />

recirculated air button.<br />

- Turn rotary temperature control<br />

towards "Cold" stop.<br />

- Set rotary fresh-air blower control<br />

to "4" .<br />

- Coolant Fan(s) V7 operating (at<br />

least stage 1).*<br />

Note:<br />

- For certain versions, fan is<br />

switched on only after the<br />

pressure in refrigerant circuit has<br />

exceeded a specified value.<br />

- Operation of Fresh Air Blower V2<br />

at maximum speed.<br />

- Recirculated/fresh-air flap set to<br />

"Recirculated air mode" (within 1<br />

min. after starting vehicle, air flow<br />

flap is closed and recirculated air<br />

flap opened).*<br />

- Coolant shutoff valve closed.*<br />

- Valves of pump valve unit closed<br />

and no coolant circulation pump<br />

delivery.*<br />

Pressures, checking<br />

- Switch ignition off.<br />

- Connect service station 00-6,<br />

Service station, connecting .<br />

- Take pressure gauge readings<br />

(two possible results).<br />

Ambient temperature (in degrees<br />

Celsius)<br />

Pressure in refrigerant circuit in bar positive<br />

pressure<br />

+15 C 3.9<br />

+20 C 4.7<br />

+25 C 5.6<br />

+30 C 6.7<br />

+35 C 7.8<br />

+40 C 9.1<br />

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...<br />

13/2/<strong>2005</strong>

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