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NO.16 HIGH OIL CONSUMPTION/LEAKAGE [MZR-CD (RF Turbo)]

BME010300000W51

16 | HIGH OIL CONSUMPTION/LEAKAGE
--- | ---
DESCRIPTION | • Oil consumption is excessive.
POSSIBLE CAUSE | • Improper engine oil • Improper dipstick • Improper engine oil viscosity • Engine internal parts malfunction • Oil leakage
• Turbocharger malfunction

Diagnostic Procedure

STEP | INSPECTION | RESULTS | ACTION
--- | --- | --- | ---
1 | Verify followings: • Proper dipstick • Proper engine viscosity • Engine oil level Are all items okay? | Yes | Go to next step.
No | Service as necessary. Repeat Step 1.
2 | Remove to necessary to inspect turbocharger.

  Note

  • Do not remove turbocharger.
Inspect if turbocharger compressor wheel is bent, damaged, or interfering with housing on vehicle.
Is there any problem?

Yes
Replace turbocharger.
No | Go to next step.
3 | Inspect if turbocharger compressor wheel locknut is loose or has fallen down inside turbocharger. Is there any problem? | Yes | Replace turbocharger.
No | Go to next step.
4 | Turn turbocharger compressor wheel by hand. Does wheel turn easily and smoothly? | Yes | Go to next step.
No | Replace turbocharger.
5 | Inspect if turbocharger turbine wheel is damaged, cracked or interfering with housing on vehicle.

  Note

  • Inspect all fins on each turbine wheel.
Is there any problem?

Yes
Replace turbocharger.
No | Go to next step.
6 | Is any engine oil found inside turbocharger turbine housing? | Yes | Excessive amount of oil is found: Replace turbocharger. Small amount of oil is found: Wipe oil off of vehicle, then go to next step.
No | Go to next step.
7 | Is any engine oil found inside turbocharger compressor housing? | Yes | Wipe oil off of vehicle, then go to next step.
No | Go to next step.
8 | Is any engine oil found around oil pipes attached on turbocharger center housing? | Yes | If oil leaks from damaged pipe, replace oil pipe. Then, go to next step.
No | Go to next step.
9 | Is any engine oil found inside air intake pipes or hoses? | Yes | Wipe engine oil off.
No | Turbocharger is okay. Install all parts removed in Step 2. Then go to next step.
10 | Is engine compression correct? (See COMPRESSION INSPECTION [MZR-CD (RF Turbo)].) | Yes | Inspect oil leakage from outside of engine.
No | Inspect for following: • Damaged valve seat • Worn valve stem and valve guide • Worn or stuck piston ring • Worn piston, piston ring or cylinder
Service as necessary.
11 | Verify test results. • If okay, return to diagnostic index to service any additional symptoms. • If malfunction remains, replace PCM. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)