Nissan Altima 2007-2012 Service Manual: Engine maintenance (QR25DE)

Recommended fluids and lubricants
Fluids and Lubricants 1: For further details, see “Engine Oil Recommendation”. *2: Using automatic transmission fluid other than Genuine NISSAN CVT Fluid NS-2 will damage the CVT, which i ...

Drive belts
 Checking Drive Belts WARNING: Inspect the drive belt only when the engine is stopped. NOTE: On vehicles not equipped with A/C, there is an idler pulley in the position for the drive bel ...

Other materials:

B2109 steering lock relay
Description The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication. IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2109 is displayed with DTC U1000, first perf ...

Exhaust manifold and three way catalyst
Removal and Installation 1. Exhaust manifold cover (upper) 2. Exhaust manifold stay 3. Manifold yoke (type B) 4. Manifold yoke (type A) 5. Exhaust manifold cover (lower) 6.. Exhaust manifold and three way catalyst assembly 7.  Exhaust manifold gasket 8. Air fuel ratio (A/F) sensor 1 ...

Power supply routing circuit
Wiring Diagram — Battery Power Supply — Wiring Diagram — Accessory Power Supply — Wiring Diagram — Ignition Power Supply — Fuse • If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. • Use fuse of spe ...