หาอ่านได้ที่นี่เพิ่มเติมครับ ==========Q U O T E
=========================== A Few Important Things to Remember Heed
these cooling system maintenance tips and you're well on your way to ensuring
your cooling system won't let you down:
Tip #1: Keep your engine and
engine compartment, as well as your radiator fins and grill, as clean as
possible. A clean engine runs much cooler - and it's much easier to work on.
Tip #2: Replace coolant at or before factory recommended intervals
with the proper type, mixture and volume of coolant. Always allow the coolant
system to rid itself of air before installing the radiator cap.
#3: Replace all cooling system hoses - upper and lower radiator hoses, bypass
hoses, heater hoses, manifold coolant hoses and any other hoses on your
vehicle - whenever you even suspect there may be a problem. All hoses should
be replaced at least every two years.
Tip #4: Replace the thermostat
with the original temperature setting equivalent. The electronics in your
vehicle may use that setting for other controls. Do not substitute under any
Tip #5: Replace the radiator/expansion tank cap with
the original pressure setting and OE-type equivalent. Some aftermarket
substitutions do not seal and hold pressure properly on foreign-manufactured
cars. Again, don't substitute.
Tip #6: Adjust or replace the water
pump drive belt (external) at recommended intervals or more frequently, if
required. Check belts whenever you're working on any coolant system
Tip #7: Replace your water pump with an OEM/OES pump at
the first signs of trouble or when your timing belt and tensioner are
replaced. Watch for signs of overheating - you don't want to break down in the
hot sun when your water pump fails.
Tip #8: Replace the fan clutch
and/or fan blade as needed (if applicable). Your BMW's temperature gauge is
often your best guide as to when your fan clutch needs attention.
#9: Replace temperature sensors as required by diagnosis. Leave
troubleshooting of your sensors to BMW experts who have the proper equipment
Tip #10: Keep your entire vehicle properly maintained
because of the effect timing, idle speed, exhaust and other systems have on
your engine's temperature. Your BMW's cooling system is designed to function
with all other systems operating properly. It cannot make up for a poorly
operating or overheating engine condition.
Your BMW Cooling System
Parts Shopping List Here's a list of cooling system repair parts you
should consider when repairing your BMW's cooling system:
- Coolant -
- Water Pump - - Water Pump Drive Belt (timing, V-, or flat) - -
Hoses (upper & lower radiator, bypass, heater, manifold coolant, etc.) -
- Radiator - - Expansion Tank - - Heater Core - - Control
Valves - - Temperature Sensors, as applicable* - - Radiator Cap and/or
Expansion Tank Cap - - Fan Clutch -
*auxilliary fan switch, gauge
sender, warning light sender, lambda, fuel injection, thermo-time switch, etc.