Mazda 6 Service Manual: No.25 a/c is not cut off under wide open throttle conditions

No.24 a/c is always on or a/c compressor runs continuously

No.26 exhaust sulphur smell

Other materials:

Mazda 6 Service Manual: Clutch master cylinder disassembly/assembly
1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. Snap Ring Disassembly/Assembly Note Hold the piston down using a cloth-wrapped pin punch. If disassembling, remove the snap ring; if assembling, install it. ...

Mazda 6 Service Manual: Precaution
Vehicles with ABS/TCS 1. The ABS warning light, BRAKE system warning light, TCS indicator light and/or TCS OFF light illuminate even when the system is normal. *1 : In cases where the light may illuminate, only when ABS/TCS HU/CM detects that speed sensor of rear wheel is malfunctioning. *2 ...