DIY Car Maintenance Checks Battery
Battery should be inspected for leakage and corrosion near terminals

6) Electricals – Starting with the battery, an electrical check should ensure proper functioning of lights, power windows, wipers and horn. Some garages also offer a dedicated battery health test.

5) Suspension – Suspension noise should be checked and brought to notice of the mechanic. Change in handling characteristics and ride quality should also be monitored.