White Smoke from Tailpipe and/or High Oil Consumption – 2011 Subaru Legacy/Outback 2011 Impreza, 2010 Forester

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Bulletin Number: 02-115-11R; Date: 02/07/13 Page 1 NUMBER: 02-115-11R DATE: 01/31/11 REVISED: 02/07/13 APPLICABILITY: 2011MY Legacy/Outback 2.5L N/A 2011MY Impreza 2.5L N/A 2010MY Forester 2.5L N/A SUBJECT: White Smoke from Tailpipe and/or High Oil Consumption INTRODUCTION If you encounter a customer complaint concerning white smoke from the exhaust pipe and/ or high oil consumption, it may be the result of the # 1 and/or # 4 intake valve guide insertion hole improperly machined, permitting oil to enter the combustion chamber. To remedy this condition, the cylinder head(s) will need to be replaced. Please read this bulletin in its entirety before proceeding. Insertion hole is not perfectly round. NOTE: There is a possibility that some of the cylinder heads were installed on engines that were installed in vehicles within the following ranges. Cylinder Head Serial # Range 249000~257150 Engine Serial # Range Legacy and Outback 706500~717084 Impreza and Forester 241224~304297 Continued… CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru Service Bulletins are intended for use by professional technicians ONLY. They are written to inform those technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. SUBARU OF AMERICA, INC. IS “ISO 14001 COMPLIANT” The international standard for excellence in Environmental Management Systems. Please recycle or dispose of automotive products in a manner that is friendly to our environment and in accordance with all local, state and federal laws and regulations. SERVICE BULLETIN ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. Bulletin Number: 02-115-11R; Date: 02/07/13 Page 2 Affected VIN Range MODEL VIN RANGE Legacy B*221209~B*222585 Outback B*344226~B*345935 Impreza Sedan B*504580~B*507148 Impreza 5 Door B*807033~B*809007 Forester A*914118~A*918058 REPAIR PROCEDURE/INFORMATION 1) First verify if the vehicle is equipped with an engine that may have the affected heads. Refer to the cylinder head serial number location illustration below. The level of carbon deposits on spark plugs # 1 and/or # 4 will be much higher than # 3 and # 2 if the condition exists. Replacement head assemblies will only be provided for that condition. 2) Remove spark plugs and compare cylinders. 3) Remove front exhaust pipe and inspect exhaust ports for excessive carbon deposits. 4) For cylinder head replacement and transfer of cam and rocker assemblies, refer to the applicable Subaru Service Manual found on the STIS web-site. Continued… Bulletin Number: 02-115-11R; Date: 02/07/13 Page 3 PART ORDERING PROCEDURE For a limited time, semi-complete Cylinder Head Assemblies will be made available in a kit through SOA Parts. These kits will include the heads, valves, valve springs, seals and some of the gaskets necessary to replace the head. Should these parts be “on-hold” at the time of ordering, you will need to provide the following information to get the parts released: 1) Vehicle Identification Number (VIN) 2) Engine Number 3) Both numbers from the Cylinder Heads originally installed on the engine. CYLINDER HEAD RANGE AND SERIAL # LOCATION Serial # Range: 249000~257150 RIGHT SIDE CYLINDER HEAD LEFT SIDE CYLINDER HEAD IMPORTANT: There are only very limited quantities of these cylinder head repair kits remaining in inventory. Once they have been depleted, order the necessary repair parts through normal parts channels. Continued… Bulletin Number: 02-115-11R; Date: 02/07/13 Page 4 PART INFORMATION NOTE: Each of the cylinder head kits includes a complete cylinder head assembly minus the cams and rocker assemblies which will need to be transferred from the old cylinder head to the new. APPLICABILITY PART NAME PART NUMBER Legacy and Outback RH Cylinder Head Kit SOA635AC18A Legacy and Outback LH Cylinder Head Kit SOA635AB57A Impreza and Forester RH Cylinder Head Kit SOA635AC020 Impreza and Forester LH Cylinder Head Kit SOA635AB430 NOTE: Depending upon which cylinder head kit is ordered, each kit will include one cylinder head assembly and the parts listed below. PART NAME PART NUMBER QUANTITY Exhaust gaskets 44022AA020 2 Plug-45×8 807045040 1 Oil seal-32x45x8 806732150 1 Rocker cover gasket 13294AA070 1 Control valve holder gasket 10924AA040 1 Additional Parts Required In addition to the cylinder head kit, the following parts must be ordered for the repair depending on vehicle application. Please refer to the Parts catalog for the applicable part numbers. • Head gasket (1 or both) • (2) Intake gaskets • (2) Cylinder head sealing washer • Spark plug (for cylinder 1, 4 or both) WARRANTY/CLAIM INFORMATION For vehicles within the warranty period, this repair can be claimed using: LABOR DESCRIPTION LABOR OPERATION # LABOR TIME FAIL CODE One Cylinder Head – R&R A243-173 4.5 AAB-27 Both Cylinder Heads – R&R A243-174 6.6 AAB-27 NOTE: The operation numbers listed include R&R of spark plugs and removal of the front exhaust pipe for inspection

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