QUES: Relax play sports enjoy tranquillity and have fun

correct the punctuation.

CORRECTED: Relax, play sports, enjoy tranquillity and have fun.

QUES: Finally you can now discover everything you need to know about your CLK file instantly

correct the punctuation.

CORRECTED: Finally, you can now discover everything you need to know about your CLK file... instantly!

QUES: Other models EC209 EC10 EC15 EC219 EC20 EC2226 EC30 are standardfitted with loadbearing valves 2 per cylinder on models with the SS9 4hose system and other models are prepared for fitting loadbearing valves

correct the punctuation.

CORRECTED:
Other models: EC209, EC10, EC15, EC219, EC20, EC2226, EC30 are standard-fitted with load-bearing valves (2 per cylinder) on models with the SS9 (4-hose) system and other models are prepared for fitting load-bearing valves.