Audi A4 Owners & Service Manuals

Audi A4: Refrigerant Circuit General Information

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 Vehicles with a High Voltage System (Hybrid Vehicles)

Extremely Dangerous Due to High-Voltage The high-voltage system is under high-voltage. Death or serious bodily injury by electric shock. - Individuals with electronic/medical life- and health su

 Refrigerant Circuit Components Allocation, High and Low Pressure Sides

 General Information

High pressure side are the condenser, receiver/dryer and restrictor or expansion valve to separate the high and low pressure liquid ends. High pressure results from the restrictor or expansion valve

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 Engine oil

If the engine oil level too low If you need to add engine oil, use an oil that is listed on the sticker. The sticker is located at the front of the engine compartment fig. 158. When using the engine oil listed on the sticker, you can adjust the oil level as often as needed. If engine oil that mee

 Introduction

The purpose of this repair manual is to provide service advisors and technicians with the basic knowledge needed to ensure professional and competent procedures.   Note Only the careful study of this documentation, practical implementation of the information contained, training on A/C syst

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