NHTSA ID Number: 10174544
Manufacturer Communication Number: 05-74-20
Summary
This bulletin provides a service procedure to address a small number of customer concerns regarding a knocking type sound coming from the engine compartment when going over bumps at low speed.
NUMBER: 05-74-20
DATE: 04/30/20
INTRODUCTION:
This bulletin provides a service procedure to address a small number of customer concerns regarding a knocking -type sound coming from the engine compartment when going over bumps at low speed. The sound is a result of foreign material trapped between the attachment surfaces of both stays and the toe board bracket and strut tower. The stays are identified in the red call-outs below and the mounting points in green.
PART INFORMATION:
| Description | Part Number |
| FLANGE NUT M8 | 902370062 |
| FLANGE BOLT 8X25 | 901000404 |
NOTE: These flange nuts (3 per stay) and flange bolts (1 per stay) are all one-time use items and MUST be replaced once they have been removed.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
- Road test the vehicle to confirm the customer’s concern.
- If the condition is confirmed, remove the stays and road test again to determine if the condition still exists.
- If the sound persists, the root cause is elsewhere. The strut mount(s) would be the next component to investigate.
- If the sound is gone, proceed to 3).
- Remove both stays and discard the removed hardware.
- Thoroughly clean both the mounting surfaces of the stays and the corresponding mounting surfaces on the strut towers and toe board mounting bracket as shown below. Use a mild solvent on a clean shop cloth and allow to thoroughly dry before reassembly.
- Reassemble in reverse order using new hardware. Torque all of the new flange nuts and bolts to 16 Nm (11.8 ft. lbs.).
- Road test the vehicle again to confirm the repair.
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
|---|---|---|
| SUBARU | BRZ | 2020 |
1 Associated Document
Manufacturer Communications
NUMBER: 05-74-20
DATE: 04/30/20
MC-10174544-0001.pdf 1183.744KB
- COMPATIBILITY: The Strut Tower Bar Fit for 2009-2013 for Subaru forester /2015-2019 for Subaru WRX STI
- PRECISE STEERING ACCURACY: The function of the front Strut bar is to enhance the rigidity of the engine compartment, the body roll when cornering is weakened, and the steering accuracy can be more precise than before
- PREVENT BODY DEforMATION: The Strut Brace is used to fix the front shock absorber of the motor vehicle as a whole, enhance the rigidity of the car body, and effectively prevent the car body from deforming
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- PACKAGE INCLUDED: 1pc aftermarket shock Tower Braces. Please double-check the parts search above to make sure it fits your vehicle
- Custom-fit for Subaru Forester 2019-2024, enhances chassis rigidity to reduce body deformation during cornering, delivering crisper steering feedback and more stable driving.
- Premium dual-material design: polished silver aluminum middle bar (lightweight yet strong) and detachable red steel side bases (robust load-bearing, sporty look).
- Engineered as a hassle-free direct bolt-on accessory for 2019-2024 Subaru Forester, it aligns perfectly with the vehicle’s original factory mounting positions. There’s no need for drilling, cutting, or any complicated modifications. The detachable side bases further simplify the installation process, allowing most DIY enthusiasts to complete the upgrade quickly and easily on their own.
- Undergoes strict and comprehensive testing, including stress tolerance, vibration endurance, and anti-corrosion trials, to ensure it can stand up to the demands of daily commuting, off-road trips, and long-term use. The polished aluminum bar resists scratches and tarnish, while the steel side bases feature anti-rust treatment, guaranteeing long-lasting reliability even in harsh environmental conditions.
- This strut bar is specially developed for Subaru Forester 2019-2024 models. To guarantee a custom fit, please double-check your vehicle’s exact year and model before purchasing. It’s a premium upgrade part that effectively enhances your Forester’s driving stability and overall performance, perfectly suited for car enthusiasts seeking both functionality and style.
- Strut Bar Type OS
- Easy Install
- Cusco Quality
- Enhances Vehicle Stability & Handling – Specifically designed for Subaru Forester 2008-2012 Impreza 2007-2011, this strut tower brace strengthens body rigidity to minimize cornering roll. Engineered to improve driving control, it’s the upgrade for safer, more responsive rides.
- Constructed with Premium Materials for Longevity – Lightweight aluminum rods pair with high-strength steel bases, coated with corrosion-resistant layers to withstand harsh conditions. This durable combo ensures lasting performance without adding unnecessary weight.
- Features Tool-Free, 15-Minute Installation – Detachable rod-and-base design fits perfectly into factory holes, eliminating drilling. Compatible with Forester SH Impreza GE/GH/GR/GV, it’s a plug-and-play solution for DIY enthusiasts.
- Guarantees Perfect Fit for Your Camry Model – Precision-engineered to match Subaru Forester 2008-2012 specifications, this strut tower brace eliminates compatibility worries. Verify your vehicle’s year and trim to ensure a seamless upgrade.
- Tested for Tens of Thousands of Vibrations to Ensure Durability – Rigorously validated through harsh stress tests, this brace resists wear and tear for long-term reliability. Rely on its proven performance to maintain stability through every journey.
- Bracing maintains alignment angles and spring rates by greatly reducing body or chassis flex. Featuring premium polished alloy materials, Whiteline products not only make your vehicle handle better but they look great too.
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Bulletin Number: 05-74-20; Date: 04/30/20 Page 1 of 2 Continued… NUMBER: 05-74-20 DATE: 04/30/20 APPLICABILITY: 2020MY BRZts / Tuned by STI Model SUBJECT: Knocking -Type Sound from Engine Compartment 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 ISO 14001 is 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. INTRODUCTION: This bulletin provides a service procedure to address a small number of customer concerns regarding a knocking -type sound coming from the engine compartment when going over bumps at low speed. The sound is a result of foreign material trapped between the attachment surfaces of both stays and the toe board bracket and strut tower. The stays are identified in the red call-outs below and the mounting points in green. PART INFORMATION: Description Part Number FLANGE NUT M8 902370062 FLANGE BOLT 8X25 901000404 NOTE: These flange nuts (3 per stay) and flange bolts (1 per stay) are all one-time use items and MUST be replaced once they have been removed. 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. ©2020 Subaru of America, Inc. All rights reserved. Bulletin Number: 05-74-20; Date: 04/30/20 Page 2 of 2 SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. 1) Road test the vehicle to confirm the customer’s concern. 2) If the condition is confirmed, remove the stays and road test again to determine if the condition still exists. • If the sound persists, the root cause is elsewhere. The strut mount(s) would be the next component to investigate. • If the sound is gone, proceed to 3). 3) Remove both stays and discard the removed hardware. 4) Thoroughly clean both the mounting surfaces of the stays and the corresponding mounting surfaces on the strut towers and toe board mounting bracket as shown below. Use a mild solvent on a clean shop cloth and allow to thoroughly dry before reassembly. 5) Reassemble in reverse order using new hardware. Torque all of the new flange nuts and bolts to 16 Nm (11.8 ft. lbs.). 6) Road test the vehicle again to confirm the repair. WARRANTY / CLAIM INFORMATION: For vehicles within the Basic New Car Limited Warranty period, this repair may be submitted using the following claim information: Labor Description Labor Operation # Labor Time Fail Code UPPER STRUT BRACE, ONE OR BOTH R&R A611-463 0.4 NCQ-25 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs.
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