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Draining and filling cooling system > < Checking oil pressure and oil pressure switch

A4 Mk1

Cooling system
Cooling system
  WARNING
Hot steam/hot coolant can escape - risk of scalding.
t  The cooling system is under pressure when the engine is hot.
t  To allow pressure to dissipate, cover filler cap on expansion tank with cloth and open carefully.
  Note
t  The cooling system is under pressure when the engine is hot. If necessary, relieve pressure before commencing repair work.
t  The arrow markings on coolant pipes and on ends of hoses must align.
   

Draining and filling cooling system > < Checking oil pressure and oil pressure switch