The 1.6 engine suffers issues with carbon build-up and, without a full strip down of engine and clean, it is nearly impossible to remove the carbon build up. Should this dislodge, it will block the oil feed to the turbocharger and result in a repeat failure. At the very least, the below engine work MUST be completed.
· TURBO OIL FEED PIPE & BANJO BOLTS MUST BE CHANGED WITH LATEST REPLACEMENT FROM DEALER.
· OIL PUMP SHOULD BE REMOVED AND CHECKED.
· SUMP MUST BE REMOVED AND OIL STRAINER (PICK UP) SHOULD BE CLEANED / REPLACED BEFORE RE-FITTING NEW TURBO TO REMOVE RESIDUAL CARBON/SLUDGE BUILD UP.
· OIL COOLER AND FILTER ASSEMBLY SHOULD BE REMOVED AND CLEANED.
· REMOVE CHARGE AIR COOLER, DRAIN OFF ANY OIL INSIDE AND CLEAN THOROUGHLY.
· CHECK AND CLEAN ALL INLET AND OUTLET HOSES.
. IF CRANK CASE PRESSURE IS PRESENT IN BREATHER PIPES OR/AND IN ROCKER/CAM COVER (NOTICABLE WHEN REMOVING OIL FILLER CAP WITH ENGINE RUNNING) DPF FILTER MUST BE EXAMINED FOR BLOCKAGE *
· IF OIL HAS LEAKED FROM PREVIOUSLY DAMAGED TURBO OR ENGINE INTO EXHAUST, CHECK EXHAUST SYSTEM FOR CONTAMINATION/BLOCKAGE (CATALYST, DPF etc.)
· REMOVE BRAKE VACUUM PUMP TO CHECK FOR DEBRIS/CARBON AND CLEAN AS NECESSARY.
· FIT NEW OIL FILTER AND OIL.
· CHECK FUEL INJECTOR GASKETS ARE NOT BURNT OR COMPROMISED. REPLACE AS NECESSARY
OIL FLOW MUST BE CHECKED: 1)FIT TURBO TO ENGINE LEAVING OIL RETURN PIPE OFF 2)INSTALL A LONGER OIL RETURN LINE AND FEED INTO SUITABLE CONTAINER 3)START ENGINE AND IDLE FOR 60 SECONDS, THEN SWITCH OFF ENGINE 4)MEASURE VOLUME OF OIL IN CONTAINER 5)60 SECONDS OF IDLE SHOULD PRODUCE AT LEAST 0.3 LITRES OF OIL. 6) REPEAT TEST TWO OR THREE TIMES TO CONFIRM OIL FLOW IS CORRECT 7) DURING THIS TEST, DO NOT ALLOW ENGINE TO RUN BELOW MINIMUM OIL LEVEL!! 8) VEHICLE SHOULD BE DRIVEN 20 to 30 MILES THEN THE OIL/FILTER REPLACED AGAIN.
Even after all the above has been carried out we cannot guarantee all carbon/oil sludge will be removed and you could still suffer a premature turbo failure. In the event of premature failure it is common for the impeller/nose nut to "come off", this is a consequence of a lubrication/turbine shaft failure & NOT a cause of turbo failure.
We feel that due to the possibility of further turbo failures on this engine it is only right to inform you before you fit a replacement turbo. Currently, we are experiencing a 15% failure rate of units we supply for this engine. Please feel free to speak to our engineers or sales team if you would like to discuss this issue further.
We would also like to assure you that this is the only engine we have experienced these failure rates with. We, as a company, will always inform you of any ongoing issues to allow you to make the right judgement call for what you deem correct for your business.
*The 1.6TDCi 16v model with the Diesel Particulate Filter is prone to problems such as injectors failing, turbocharger failing and engine oil contamination. This is mainly due to the Diesel Particulate Filter (DPF) getting blocked up. When the DPF blocks up, it causes back-pressure to push carbon back up in to the turbocharger, engine and other components such as the diesel injectors. They then become carbonated and the oil becomes contaminated. Symptoms of this issue is heavy carbon deposits in oil, high crank case pressure in cam cover, breathers, dip stick tube etc.
Please note: although the DPF filter utilises a warning lamp on the dashboard, there have been many cases where such light has not illuminated!
All turbocharger manufacturers names, logos and part numbers are for identification purposes and cross referencing only and do not imply the part is a genuine part made by said manufacturer unless specifically stated. Although we make every effort to ensure all information is correct, we cannot be held responsible for errors and advise you ensure part is correct for your needs.