LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1076 (Accessory Drive Belt System - 3.5L ECOBOOST (272KW/370PS)) >> Diagnosis And Testing >> Accessory Drive >> Component Tests >> Accessory Drive Belt Tensioner - Dynamic Check

Accessory Drive Belt Tensioner - Dynamic Check

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

The accessory drive belt tensioner may be checked dynamically as follows:

  1. With the engine running, observe the accessory drive belt tensioner movement. The accessory drive belt tensioner should move (respond) when the engine is accelerated rapidly or when the A/C clutch cycles ON and OFF (the degree of movement can be up to 4 mm). If the accessory drive belt tensioner movement is not constant without engine acceleration or A/C clutch cycling, a pulley or shaft is possibly bent, out of round, or the damping mechanism inside the accessory drive belt tensioner may be damaged. INSTALL a new accessory drive belt tensioner as necessary. REFER to: Accessory Drive Belt Tensioner .
  2. Excessive accessory drive belt rideout (uneven depth of grooves in the accessory drive belt) may cause excessive accessory drive belt tensioner movement. Check the condition by installing a new accessory drive belt. REFER to: Accessory Drive Belt .
scientia non olet · About LEMON Manuals