How to replace a brake booster on an Acura MDX?

Depress the brake pedal several times with the engine off and make sure that there is no change in the pedal reserve distance. Depress the pedal and start the engine. If the pedal goes down slightly, operation is normal. Start the engine and turn it off after one or two minutes. Depress the brake pedal several times slowly. If the pedal goes down farther the first time but gradually rises after the second or third depression, the booster is airtight. Depress the brake pedal while the engine is running, then stop the engine with the pedal depressed. If there is no change in the pedal reserve travel after holding the pedal for 30 seconds, the booster is airtight. Disassembly of the power unit requires special tools and is not ordinarily performed by the home mechanic. If a problem develops, it's recommended that a new or factory rebuilt unit be installed. Remove the master cylinder. On 2004 and earlier Honda models and 2001 and 2002 Acura models, disconnect the accelerator cable and cruise control cable from the throttle body. Disconnect the large vacuum hose from the power brake booster. In the passenger compartment, remove the joint pin and then disconnect the pushrod clevis from the brake pedal arm. Remove the nuts attaching the booster to the firewall. Carefully lift the booster unit away from the firewall and out of the engine compartment, being especially careful not to bend the hydraulic brake lines that are in front of the booster. To install the booster, place it into position and tighten the retaining nuts. Connect the pushrod to the brake pedal. The manufacturer states to use a new lock pin for the pushrod joint pin when installing the brake booster. Install the master cylinder. Reconnect the vacuum hose. Bleed the brakes. Carefully test the operation of the brakes before placing the vehicle in normal service. The pushrod length on these models must be adjusted for proper installation of the brake booster. Special tools are required for this procedure. It is recommended that the vehicle be towed to a dealer service department or other qualified repair shop for replacement of the power brake booster.

Genuine Acura MDX Brake Booster

Brake Power Booster

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17 Brake Boosters found

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Acura MDX Power Brake Booster Assembly
Part Number: 01469-STX-A00
$273.26 MSRP: $390.27
You Save: $117.01 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Power Set, Master (10.5"); Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Master Power Set (10.5")
Part Number: 01469-TZ5-A10
$119.33 MSRP: $168.55
You Save: $49.22 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Power Set, Master (10.5") ; Brake Booster; Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Booster Set
Part Number: 01469-TYC-A02
$1271.22 MSRP: $1815.52
You Save: $544.30 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Master Power Assembly (9"+9")
Part Number: 46400-S3V-A11
$508.52 MSRP: $726.25
You Save: $217.73 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Power Assembly, Master (9"+9") ; Brake Booster; Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Booster Set
Part Number: 01469-TYA-A03
$1279.59 MSRP: $1827.47
You Save: $547.88 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Power Set (10.5")
Part Number: 01469-TZ5-A00
$428.52 MSRP: $612.00
You Save: $183.48 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Booster; Booster Assembly
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Set, Bos Assembly
Part Number: 01469-TRX-A05
$1401.63 MSRP: $2001.75
You Save: $600.12 (30%)
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Product Specifications
- Replaces: 01469-TRX-A04
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Power Assembly, Master (9"+9")
Part Number: 46400-S3V-A21
$333.10 MSRP: $536.70
You Save: $203.60 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Booster Assembly
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX SET, EBB(SERVICE)
Part Number: 01469-TYC-A12
$1142.48 MSRP: $1631.65
You Save: $489.17 (30%)
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Product Specifications
- Other Name: SET,EBB(SERVICE)
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX SET, EBB
Part Number: 01469-TYC-A11
$1142.48 MSRP: $1631.65
You Save: $489.17 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Set, EBB
Part Number: 01469-TYC-A04
$1271.22 MSRP: $1815.52
You Save: $544.30 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX SET, BOS ASSY.
Part Number: 01469-TYB-A11
$1075.04 MSRP: $1535.33
You Save: $460.29 (30%)
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Product Specifications
- Other Name: Brake Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX Simulator Set
Part Number: 01469-TYB-A03
$1533.89 MSRP: $2190.65
You Save: $656.76 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Assembly, Brake Booster
- Replaces: 01469-TYB-A00
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX SET, EBB(SERVICE)
Part Number: 01469-TYA-A12
$1220.64 MSRP: $1743.27
You Save: $522.63 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SET,EBB(SERVICE)
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura MDX SET, EBB
Part Number: 01469-TYA-A11
$1220.64 MSRP: $1743.27
You Save: $522.63 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
View related parts
Acura MDX Set, EBB
Part Number: 01469-TYA-A05
$1279.59 MSRP: $1827.47
You Save: $547.88 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Booster, Servo
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
View related parts
Acura MDX Master Power Assembly (9"+9")
Part Number: 46400-S3V-A02
Product Specifications
- Other Name: Power Assembly, Master (9"+9") ; Brake Booster; Booster Assembly, Brake Booster
- Replaces: 46400-S3V-A01
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura MDX Brake Booster

The Acura MDX Brake Booster provides drivers with good stopping power at much less pedal pressure. A Brake Booster is mounted between the brake pedal and master cylinder that multiplies the force your foot puts on the pedal using either engine vacuum or fluid pressure. Most generations of MDX use a vacuum type unit which consists of a two chamber case, a diaphragm and an internal valve which only admits atmospheric air when you press the pedal, creating a pressure difference that pushes a piston to put more force on the master cylinder than your leg could. If the vacuum is low, some later Acura hybrids include a hydraulic Brake Booster powered by the power steering or an electric pump, which is able to achieve the same assist using fluid pressure rather than air. While both styles are aimed at achieving easier braking, the vacuum design works and requires engine suction whereas the hydraulic version provides consistent help even in situations like idling or start stop events. Either way, the Brake Booster in every Acura MDX is designed for reliability, but in the event of loss of vacuum or fluid, assist may be diminished after only a few unpowered pedal strokes, a reminder that the component is intended primarily to reduce effort, but not necessarily to replace attentive braking. The Acura MDX Brake Booster assists.

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Acura MDX Brake Booster Parts Questions & Experts Answers

Power Brake Booster Assembly
01469-STX-A00
Q: How to replace a brake booster on an Acura MDX?
A:
Depress the brake pedal several times with the engine off and make sure that there is no change in the pedal reserve distance. Depress the pedal and start the engine. If the pedal goes down slightly, operation is normal. Start the engine and turn it off after one or two minutes. Depress the brake pedal several times slowly. If the pedal goes down farther the first time but gradually rises after the second or third depression, the booster is airtight. Depress the brake pedal while the engine is running, then stop the engine with the pedal depressed. If there is no change in the pedal reserve travel after holding the pedal for 30 seconds, the booster is airtight. Disassembly of the power unit requires special tools and is not ordinarily performed by the home mechanic. If a problem develops, it's recommended that a new or factory rebuilt unit be installed. Remove the master cylinder. On 2004 and earlier Honda models and 2001 and 2002 Acura models, disconnect the accelerator cable and cruise control cable from the throttle body. Disconnect the large vacuum hose from the power brake booster. In the passenger compartment, remove the joint pin and then disconnect the pushrod clevis from the brake pedal arm. Remove the nuts attaching the booster to the firewall. Carefully lift the booster unit away from the firewall and out of the engine compartment, being especially careful not to bend the hydraulic Brake Lines that are in front of the booster. To install the booster, place it into position and tighten the retaining nuts. Connect the pushrod to the brake pedal. The manufacturer states to use a new lock pin for the pushrod joint pin when installing the brake booster. Install the master cylinder. Reconnect the vacuum hose. Bleed the brakes. Carefully test the operation of the brakes before placing the vehicle in normal service. The pushrod length on these models must be adjusted for proper installation of the brake booster. Special tools are required for this procedure. It is recommended that the vehicle be towed to a dealer service department or other qualified repair shop for replacement of the power brake booster.

Genuine Acura MDX Brake Booster

17 Brake Boosters found

Acura MDX Power Brake Booster Assembly

Acura MDX Master Power Set (10.5")

Acura MDX Booster Set

Acura MDX Master Power Assembly (9"+9")

Acura MDX Booster Set

Acura MDX Power Set (10.5")

Acura MDX Set, Bos Assembly

Acura MDX Power Assembly, Master (9"+9")

Acura MDX SET, EBB(SERVICE)

Acura MDX SET, EBB

Acura MDX Set, EBB

Acura MDX SET, BOS ASSY.

Acura MDX Simulator Set