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.
Battery Cooling Module, Removing And Installing: Installing
Installation Is Carried Out In The Reverse Order While Observing The Following.
Follow the instructions for installing the O-rings. Refer to REFRIGERANT CIRCUIT SEALS .
Following attachment, check routing of refrigerant lines. They must be inserted in holders provided and not make contact with other components.
-- Replace the O-ring seals -4-. For the correct version. Refer to the Parts Information.
-- Clean the refrigerant line connections -3 and 5- and inspect them for damage.
-- Make sure the O-rings -4- sit correctly inside the grooves of the respective mount.
-- Check the alignment pin -2- (not present on all connections) for damage and make sure that it is seated correctly.
-- Tighten the bolts -1-.
-- Install the refrigerant lines for the battery cooling module in the luggage compartment. Refer to REFRIGERANT LINES FOR BATTERY COOLING MODULE IN LUGGAGE COMPARTMENT, REMOVING AND INSTALLING .
-- Install the remaining removed components.
-- Electrical connections and routing. Refer to Wiring Diagram.
-- Evacuate the refrigerant circuit and fill it. Refer to REFRIGERANT CIRCUIT, EVACUATING WITH A/C SERVICE STATION (R134a) - CABRIOLETREFRIGERANT CIRCUIT, EVACUATING (R1234yf) - CABRIOLET (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
-- Turn on the ignition.
-- Check the DTC memory for the Climatronic Control Module -J255- display and control head and erase any displayed malfunctions, if necessary using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
-- Operate the A/C system after filling the refrigerant circuit. Refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT .
Observe the information regarding operating the A/C system after filling. Refer to A/C SYSTEM, GENERAL INFORMATION (R134a) - CABRIOLET (Refrigerant R134a, Servicing; A/C System, General Information). After charging the A/C system before activating the A/C system.
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.