Audi 3.0T CREC Supercharger Intercoolers Replacement (A6, A7, A8, Q7, S4, S5, SQ5)

After I replaced the spark plugs, the throttle body, the MAP sensor, the MPI injectors and the FSI injectors because cylinders 5 and 6 were misfiring in my Audi 3.0 TFSI CREC Supercharged Engine, I decided to replace the intercooler on that bank because a leaking intercooler can cause misfires too. I purchased one intercooler and replaced the one for bank 2 serving cylinders 4, 5 and 6, but then I got confronted to a broken bleeder screw on the intercooler for bank 1. I damaged the cooler trying to remove the broken bleeder screw bits so I was obliged to order another one. Cost with shipping, tax and customs for both coolers was around $3,300 not including the bleeding tool and the replacement 034 Motor Sport bleeder screws. Replacing the intercoolers did not fix the misfires. It turned out the cylinders have lost compression and the engine needs to be rebuilt or replaced.

Supercharger removal:    • Part 03 - Supercharger removal - Audi...  
Supercharger install:    • Part 14 - Supercharger install - Audi...  

TORQUE SPECS
Intercooler to supercharger: T-30, 10 Nm in stages, replace bolts
Front plastic coolant pipe to intercoolers: T-25, 5 Nm in stages
Charge pressure sender to supercharger: T-30, 10 Nm
034 MotorSport bleeder screw to intercooler: 7 mm, 5 Nm
Valves bracket to supercharger: T-30, 9 Nm
Throttle body to supercharger: T-30, 10 Nm in stages
Supercharger to cylinder heads: 13 mm, 20 Nm in stages
Front metallic coolant pipe to frame: T-30, 9 Nm

REPLACEMENT PARTS FOR BOTH INTERCOOLERS
Intercooler (x2): 06E145621AC
Intercooler gasket (x2): 06E145723H
Intercooler securing bolt (x12): N10451409
034 MotorSport bleeder screw kit (x1): 034-145-Z043
Charge air pressure sender O-ring (x2): 036906149D
Front plastic coolant pipe seal (x4): 06E121119J

USEFUL TOOL
Schwaben Cooling System Pressure Tester Kit: 014710SCH01A

CHAPTERS
00:00 - Preview
00:37 - Removing Bank 2 Intercooler
09:10 - Cleaning Carbon in Supercharger Bank 2
15:37 - Installing New Intercooler for Bank 2
43:02 - Broken Bank 1 Bleeder Screw, Damaged Cooler
43:44 - Cleaning Carbon in Supercharger Bank 1
44:19 - Installing New Intercooler for Bank 1
44:24 - Installing 034 Motor Sport Bleeder Screws
46:46 - Supercharger Looking Brand New
47:53 - Bleeding Intercoolers

06E 145 621 AC, 06E 145 621 M, 0 261 230 234, 06E 971 845 L, 06E 133 520 M, 0 261 232 012, 06E 906 051 AA, 06E 121 083Q, N 104 514 09, 06E 121 119 J, 036 906 149 D, 037 906 283 C, 034-145-Z043