Tech Tips from The Masters
Don't let this happen to you!!! If the radiator in your Volvo® is older than 5 years, consider replacing it and the thermostat. Since 1993 most vehicles come with a radiator that has plastic tanks. These become brittle with age and are subject to catastrophic failure causing major engine damage and an extremely expensive repair bill.
Pollen Filters
Cabin Air Filters (Pollen Filters).
Most late model Volvo®'s come standard with a cabin air filter. The purpose of these filters is to filter allergens, irritants and airborne particles. These can include bacteria, pollution, dust, odors and spores. The main benefit of these filters is passenger comfort, although failure to replace at the required 15,000 mile interval could impact the efficiency of the air conditioning and heating system. In addition, clogged or missing filters may cause premature corrosion of the A/C evaporator. Another symptom your filter may need to be replaced is the potential excess hazing of the windows. This pollen filter is available, and it is recommended to be replaced every 15,000 miles. As we are heading into the summer season, there are more particles in the air; and while keeping your A/C system in peak performance, it may require the replacement of this filter.

Timing Belt Tensioning Devices
For Volvo® vehicles, model 850, 960 and all newer models such as S80, S60, S & V70 (99 & newer) and S & V40, a consideration should be made when replacing the timing belt. There are several tensioning devices and pulley components involving the timing belt that (like any other mechanical part), for if in the event of failure may cause, major internal engine damage. The reason for the damage is the simple fact that these models have an 'interference engine'. The timing belt opens and closes the intake and exhaust valves at the correct time in relation to the pistons going up and down i.e. timing. If the valves open at the wrong time, they will hit the piston and cause internal engine damage. Replacing these tensioning devices and pulley components at the time of replacing the timing belt is the most cost effective time to do so. There are additional costs for replacing these components, but just consider it preventative maintenance since on newer vehicles timing belt interval are every 105k! The time line on pre-98 car is between 50 and 70,000 miles depending on the exact year and model.
So, next time you have your timing belt replaced ask questions about this very important belt tensioner &/or pulley and if they are recommended for replacement at that time. It could save you time and money in the long run.