failure. If you have added non-distilled water, take the vehicle 
immediately to an authorized Volkswagen dealer or an author-
ized Volkswagen Service Facility to have the coolant system 
drained, flushed, and refilled completely with the proper coolant. 
  Refill engine coolant only up to the top edge of the marked fill 
range ⇒ fig. 168. Excess engine coolant may be forced out of the 
engine cooling system when it gets hot and cause damage. 
  In the case of significant engine coolant loss, refill engine 
coolant only when the engine is completely cooled down. Signif-
icant engine coolant loss is a sign of leaks in the cooling sys-
tem. Have the engine cooling system checked immediately by an 
authorized Volkswagen dealer or an authorized Volkswagen Ser-
vice Facility. Otherwise the engine may be damaged! 
  When changing or topping off operating fluids, make sure that 
you pour the fluids into the correct reservoirs. Serious malfunc-
tions and engine damage can result if you pour operating fluids 
into the wrong reservoir. 
   
 
Checking the vehicle battery electrolyte level 
 
Fig. 170 In the engine compartment: On vehicles with a 2.0 liter en-
gine, the vehicle battery is in the engine compartment. 
 
Fig. 171 In the luggage compartment: On vehicles with a 3.6 liter en-
gine, the vehicle battery is on the left side of the luggage compart-
ment.