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Where are 2006 Volvo S40 AC high and low pressure valves?

The high and low-pressure valves on a 2006 Volvo S40 are both located in the engine compartment.

To find the high-pressure valve:

1. Locate the air conditioning compressor, which is usually located on the passenger side of the engine compartment.

2. The high-pressure valve will be located on the compressor. It is usually a small, black valve with a Schrader valve cap.

To find the low-pressure valve:

1. Locate the air conditioning evaporator, which is usually located behind the dashboard on the passenger side of the vehicle.

2. The low-pressure valve will be located on the evaporator. It is usually a larger valve than the high-pressure valve, and it may have a blue or green cap.