Description

Subaru IMPREZA 2009 Service Manual – Factory Specs for the 3,730-Page Beast

If you’ve ever tried to rebuild a Subaru boxer engine using a Chilton’s or a third-party PDF, you know the drill: torque specs that don’t match, wiring diagrams that skip pins, and safety warnings that are missing entirely. I’ve been torquing head bolts for 28 years, and I’ve seen engines come back with blown head gaskets because some DIYer trusted a generic manual. That’s why I’m writing this: the Subaru IMPREZA 2009 Service Manual is the only thing you should trust for a 2009 Impreza. 3,730 pages of factory data, straight from Fuji Heavy Industries. No reprints, no aftermarket shortcuts.

3730 Pages of Factory Data – What You Actually Get

This is the full General Information Section plus Periodic Maintenance Services. The manual opens with the Quick Reference Index on page 1, then dives into Foreword on page 4 where it states: “Applicable model: 2009MY GE*****, GH*****.” From there, you get the SPECIFICATIONS SPC chapter covering the Engine, Electrical, and Transmission – with dimensions, capacities, weights, and tire specs. The PRECAUTION PC section alone lists 16 separate safety areas including ABS, VDC, airbag disposal, and radiator fan hazards. That’s not fluff – that’s the difference between a safe repair and a lawsuit.

How to Use This Manual: The Structure Matters

The HOW TO USE THIS MANUALS HU section explains the layout: structure, contents, component, specification, inspection, maintenance, diagnosis, SI units, and terminology. Every chapter is labeled with a two-letter code (FW, HU, SPC, PC, etc.) so you can flip directly to the torque values or the wiring diagram you need. If you’re a beginner, read the “Explanation of Terminology” first – it’ll save you from mistaking a technical service bulletin for a repair step.

Pre-Delivery Inspection: Don’t Skip This If You’re Starting Fresh

The PRE-DELIVERY INSPECTION PI section lists 47 checkpoints – from tire pressure and brake fluid to ECM protector and delivery mode connector. I’ve seen shops skip the “Fuse Installation” step and then spend an hour chasing a no-start. The factory procedure includes the exact sequence for the keyless entry system and immobilizer. You don’t guess when you have the OEM document.

Safety Warnings: The Precaution Section is Not Optional

Page 4 of the Foreword doesn’t have the warnings – that’s in the PRECAUTION PC chapter. The manual explicitly warns about static electricity damage to the battery, proper hose removal procedures, and the correct way to handle the airbag module. If you’re doing a brake job, the “BRAKE FLUID” caution is critical – wrong fluid eats the ABS pump. The “VEHICLE DYNAMICS CONTROL (VDC)” note tells you to disable the system before jacking. This is the kind of detail that aftermarket manuals omit because they’re photocopying the table of contents without reading it.

Does This Manual Cover the Fuel System?

Yes, the RECOMMENDED MATERIALS RM section specifies unleaded gasoline, lubricants, coolant, refrigerant, and seal materials. The IDENTIFICATION ID chapter gives you the V.I.N. breakdown so you can confirm your engine and transmission codes. If you’re swapping a 2.5L, the manual tells you which rear differential and option code matches your car.

What is the publication year of this manual?

2009, matching the model year. The data is current as of the time of publication.

Does this manual include torque specifications for the cylinder head?

Yes, the ENGINE section of the SPECIFICATIONS SPC chapter includes fastener torque values for the EJ series engines. You’ll find the exact inch-pound and foot-pound numbers – no conversion needed. The manual also includes tightening sequences and angle specs. I’ve seen a head gasket fail because a guy used a generic 65 ft-lb value. The OE spec is different. Get the manual.

Is this a PDF format or a physical book?

Digital access of the original factory PDF. 3,730 pages, searchable, printable. No watermarks, no reprints.

Can I use this for a 2010 Impreza?

No. This is specific to the 2009 model year. The VIN identification and calibration data differ.

If you want to understand the broader context of factory documentation, see Automotive Industry Overview. For more on OEM standards, check Automotive Industry Overview.

Related Manuals:

• SUBARU IMPREZA 1993 Service Manual – Section: Electrical Section
• Subaru Impreza Service Manual
• SUBARU Impreza 1994 Service Manual – Section: Engine Sction

Stop wasting billable hours on aftermarket manuals that leave out critical steps. Access the Factory Manual for the 2009 Subaru Impreza and get the exact procedures that the dealership techs use. Your engine – and your wallet – will thank you.