Mercedes uses a timing chain instead of a belt . The chain will most likely outlast the car itself.
60 ,000 MILES , YOU MUST ALSO CHANGE THE TIMING BELT TENSIONER EVERY TIME
Change it every 60,000 miles.
It must have a timing CHAIN ( The Gates website does not list a timing belt for the 1.5 liter , 4 cylinder engine in a 2005 Scion XB )
No, you do not have to replace the timing belt at the same time as the water pump. It is highly recommended because there is no additional labor involved since the timing belt must be removed to replace the water pump.
Must be changed every 105,000 miles.
No. One had absolutely nothing to do with the other. Leave the timing alone. ----- Trail blazer with 4.2 L motor does not have timing belt. It have timing chain instead. This timing chain last over 150K miles. Possible the belt is Accessory drive belt (not timming). Per some manual this belt must be inspected and replaced if necessary every 60000 miles.
Must be changed every 90,000 miles.
Both the 3.0 and 3.5 V6 have a rubber timing belt. Both must be changed at 60,000 miles. Both are interference engines and if the belt breaks you will have serious engine damage.
The timing belt must be replaced every 90K miles. If you tow or drive in mountains you need change even earlier (60-70K).
When changing the timing belt, you must also change the water pump and belt tensioner. While the belt is off, you want to check the front crankshaft seal for any leakage. if no leakage is found you don't need to replace it. You should also replace the accessory drive belts, as they will already be off to replace the timing belt.
It must have a timing CHAIN ( the Gates website does not have a listing for a timing belt )
It must be a timing CHAIN , the Gates website does not list a timing belt for your 3.5