Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Refrigerant Line With RESTRICTOR
The illustration shows a refrigerant line -A- with a fixed installed restrictor -B- (without a strainer)
To remove the refrigerant line, remove the High Voltage Battery Heater Core Refrigerant Cut-Off Valve -N542- (refer to High Voltage Battery Heater Core Refrigerant Cut-Off Valve -N542-, REMOVING AND INSTALLING ) and remove the refrigerant line from the High Voltage Battery Heat Exchanger. Refer to HIGH VOLTAGE BATTERY HEAT EXCHANGER, REMOVING AND INSTALLING .
The diameter of the illustrated variable orifice -B- is approximately 0.7 mm. Depending on the version of the refrigerant line this constriction is either installed fixed in the refrigerant line or only inserted. For the inserted version a strainer for flowing deposits may be installed, which can be blocked by the variable orifice.
Before installing check the bore -B- for debris and if necessary clean or replace.
There are different versions. Refer to the Parts Information.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.