Further Help Needed - Belts
 

Thank you to all of you who walked me through the frozen ignition, starter, and brakes on the 300SE and the brakes on the 560SEL. Finished the work this weekend. Now I need help on further work on the 560SEL. Is there an easy way to change out all five belts, or do I have to loosen each component individually? And is there a way that I can check for a gas leak? Smells like gas upon startup, and been getting horrible gas mileage. Any suggestions would be highly appreciated!!
Thanks,
JD