Drive belt

MR20DE model
1. Automatic tensioner
2. Generator
3. Water pump
4. Air conditioner compressor (with A/C) or Idler
pulley (without A/C)
5. Crankshaft pulley

QR25DE model
1. Crankshaft pulley
2. Idler Pulley
3. Automatic tensioner
4. Water pump
5. Generator
6. Air conditioner compressor

Be sure the ignition switch is in the OFF or LOCK position before servicing drive belt.
The engine could rotate unexpectedly.
1. Visually inspect the belt for signs of unusual wear, cuts, or fraying. If the belt is in poor condition, have it replaced or adjusted by a NISSAN dealer.
2. Have the belt checked regularly for condition.
See also:
Fourth generation
The fourth generation Altima was announced at the 2006 New York Auto Show on
April 12, 2006. It is the first vehicle to use the smaller Nissan D platform,
with a new front and upgraded rear suspen ...
Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Engine Coolant (blue) and 50% water
to provide year-round anti-freeze and coolant
protection. Th ...
Variable voltage control system
CAUTION:
- Do not ground accessories directly to
the battery terminal. Doing so will bypass
the variable voltage control system
and the vehicle battery may not
charge completely.
- Use ele ...
