Checking Drive Belt
WARNING: This page is about a different car, the 2018 Porsche Macan and 2017 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Drive belt removed incorrectly
- Risk of damage to drive belt
→ Only remove the drive belt when it is cold.
→ Replace damaged drive belt.
CAUTION:
Drive belt breaks and becomes jammed
- Risk of damage to components (trim panels, electric cables, etc.)
- Leaks at the crankshaft vibration damper sealing ring
- Vibration damper can overheat and lose its strength
→ Following belt breakage, check adjacent components and the interior of the engine compartment for damage. Repair or replace damaged parts.
→ Find out why the belt broke. Check deflection rollers or crankshaft vibration dampers for prior damage.
→ If the drive belt is jammed, replace the vibration damper.
WARNING:
Rotating components
- Danger of limbs being trapped or severed
→ Disconnect power supply to the drive motor of components or to the battery.
NOTE:
- If spark plugs must be changed in the course of maintenance operations, the drive belt should be checked when the spark plugs are removed. The engine can then be cranked easier.
NOTE:
- The following table indicates damage which necessitates replacement.
Damage symptoms for drive belts
| Item | Type of damage | Explanation |
|---|---|---|
| -A- | Slight crack in a rib. | Drive belt is OK. |
| -B- | Hairline crack that runs across the entire belt width, or the butt seam is damaged. | Replace drive belt. |
| -C- | Crack running down to half of rib height. | Drive belt must be replaced if there is more than one crack running down to half of rib height. |
| -D- | Crack running to base of rib | Replace drive belt. |
| -E- | Crack running to traction cord, or edges so worn that the traction cord becomes visible. | Replace drive belt. |
| -F- | Rib detachment | Replace drive belt. |
| -G- | Rib fracture | Replace drive belt. |
- Using chalk, mark the drive belt in the area around the tensioning roller.
- Turn engine at the vibration damper in rolling direction using a socket wrench until the chalk mark is at the same place again. While turning at the crankshaft, check the drive belt for signs of damage.