How to check the power brake function and carry out the removal and installation of the brake booster on Volvo 740?

To check the power brake function, deprive it of vacuum by depressing the brake pedal about five times, then depress the brake pedal and start the engine - its position should drop slightly if functioning properly. For a pressure test of the system, brake pedal pressure should be applied for approximately 20 seconds and then high pedal pressure applied for 5 seconds. pedal position should not drop as a drop in the pedal position indicates brake fluid leakage or a booster vacuum leak. For removal and installation purposes, first disconnect the negative battery cable and then remove the master cylinder and disconnect the vacuum hose and check valve from the booster. If necessary, disconnect the fuel filler and the vacuum pump and place them out of the way. Inside the vehicle, remove the soundproofing and disconnect the brake pedal rod, remove the power booster retaining nuts and remove the power booster. Before the installation of the new booster check the valve seal and replace it if necessary, making sure that the flange of the seal is correctly positioned. For the 2 x 8 inch booster, place the sealing washer and seal on the booster and then place the booster back in the car. Reconnect the brake pedal to the booster rod, refit the soundproofing and install the master cylinder, check valve and vacuum hose. Finally, bleed the brakes and clutch if fitted, and reconnect the negative battery cable.

How to test and remove the Brake Booster unit on Volvo V40?

To check the working of the brake booster, depress the footbrake several times to exhaust the vacuum and start the engine whilst continuing to press the pedal firmly; there should be a noticeable give in the brake pedal as the vacuum builds up. After turning the engine on for at least two minutes, turn the engine off and apply the brake pedal, which should feel normal with additional applications giving a firmer pedal and reduced pedal stroke. If the brake booster no longer works as expected, check for the brake booster check valve; if it still fails, the brake booster must be renewed as it cannot be repaired. For right-hand-drive models, to remove the master cylinder, disconnect the battery negative lead, enhance access by removing the engine cover and unclipping the coolant expansion tank, clean the master cylinder and brake booster area, and remove the brake pipe retaining clip bolt before removing the master cylinder. On manual transmission models, also remove the clutch master cylinder, carefully ease out the vacuum hose valve from the brake booster, remove the driver's side lower panel, and disconnect the footwell light wiring. Unclip the control module, remove the control module holder, withdraw the clevis pin fixing the pushrod to the pedal, remove the brake booster retaining nuts, then maneuver the brake booster out of position, recovering the gasket for inspection. For left-hand-drive models, similar steps are followed for the removal of the master cylinder and the driver's side lower panel, and withdrawal of the clevis pin and removal of the brake booster retaining nuts, and the brake booster is maneuvered out and the gasket inspected. For refitting on right-hand-drive models, make sure to have clean mating surfaces, fit the gasket to the back of the brake booster, fit the pushrod to the pedal, fit and tighten the brake booster nuts, put grease on the clevis pin, secure the control module and relay box, connect the vacuum hose again, and re-attach the coolant expansion tank. On manual transmission models, also refit the clutch master cylinder and the braking system master cylinder, and bleed the complete hydraulic braking system and the clutch system. For left-hand-drive models, perform the same operations and re-fit the master cylinder while bleeding the entire hydraulic system.

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27 Brake Boosters found

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Volvo Brake Booster Part Number: 31274699
$677.12 MSRP: $933.06
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Product Specifications
- Other Name: Brake Booster 2510; Brake Booster, Power Booster
Fits the following Volvo Models:
- S80 | 2007-2010 | V8 | 8 Cyl 4.4 L GAS
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Volvo Brake Booster Part Number: 8649491
$779.30 MSRP: $1073.86
You Save: $294.56 (28%)
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Product Specifications
- Other Name: Brake Booster 2604; Brake Booster, Power Booster
Fits the following Volvo Models:
- C70 | 2001 | Base | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S60 | 2001 | 2.4T, Base, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S80 | 1999-2001 | 2.9, T6 | 6 Cyl 2.8 L GAS, 6 Cyl 2.9 L GAS
- V70 | 2001 | 2.4T, Base, T5, X/C | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
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Volvo Brake Booster Part Number: 31273674
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC90 | 2009-2014 | 3.2, 3.2 R-Design, V8 | 6 Cyl 3.2 L GAS, 8 Cyl 4.4 L GAS
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Volvo Brake Booster Part Number: 31274697
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S80 | 2007-2016 | 3.2, T5, T5 Platinum, T6 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- V70 | 2008-2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC70 | 2015 | T5 | 4 Cyl 2.0 L GAS
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Volvo Brake Booster Part Number: 31274700
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC60 | 2010-2016 | 3.2, 3.2 R-Design, T6, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- XC70 | 2008-2014 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Volvo Brake Booster Part Number: 31274807
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S60 | 2011-2018 | Polestar, T5, T5 Dynamic, T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design Special Edition, T6, T6 Platinum, T6 Polestar, T6 Premier Plus, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- S60 Cross Country | 2016-2018 | T5, T5 Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
- S80 | 2007-2016 | 3.2, T5, T5 Platinum, T6 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- V60 | 2015-2018 | Polestar, T5, T5 Dynamic, T5 Platinum, T5 Premier, T5 Premier Plus, T6 Polestar, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- V60 Cross Country | 2015-2018 | T5, T5 Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
- V70 | 2008-2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC60 | 2015-2017 | T5, T5 Dynamic, T5 Inscription, T5 Platinum, T5 Premier, T6, T6 Dynamic, T6 Inscription, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2012-2016 | 3.2, T5, T5 Platinum, T5 Premier, T6 | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Volvo Brake Booster Part Number: 31274810
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC60 | 2010-2016 | 3.2, 3.2 R-Design, T6, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- XC70 | 2008-2014 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Volvo Brake Booster Part Number: 31302533
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC60 | 2012-2017 | 3.2, T5, T5 Dynamic, T5 Inscription, T5 Platinum, T5 Premier, T6, T6 Dynamic, T6 Inscription, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- XC70 | 2012-2016 | 3.2, T5, T5 Platinum, T5 Premier, T6 | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
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Volvo Brake Booster Part Number: 31329898
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S60 | 2011-2018 | Polestar, T5, T5 Dynamic, T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design Special Edition, T6, T6 Platinum, T6 Polestar, T6 Premier Plus, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- S60 Cross Country | 2016-2018 | T5, T5 Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
- S80 | 2012-2015 | 3.2, T6 | 6 Cyl 3.0 L GAS, 6 Cyl 3.2 L GAS
- V60 | 2015-2018 | Polestar, T5, T5 Dynamic, T5 Platinum, T5 Premier, T5 Premier Plus, T6 Polestar, T6 R-Design, T6 R-Design Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- V60 Cross Country | 2015-2018 | T5, T5 Platinum | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
- XC60 | 2015-2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
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Volvo Brake Booster Part Number: 31400307
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC60 | 2018-2021 | T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design | 4 Cyl 2.0 L GAS
- XC90 | 2016-2022 | T5 Inscription, T5 Momentum, T5 R-Design, T6 First Edition, T6 Inscription, T6 Momentum, T6 R-Design | 4 Cyl 2.0 L GAS
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Volvo Brake Booster Part Number: 31423486
$476.16 MSRP: $620.00
You Save: $143.84 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S60 | 2019-2021 | T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design | 4 Cyl 2.0 L GAS
- S90 | 2017-2021 | T5 Inscription, T5 Momentum, T6 Inscription, T6 Momentum, T6 R-Design | 4 Cyl 2.0 L GAS
- V60 | 2019-2021 | T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design | 4 Cyl 2.0 L GAS
- V60 Cross Country | 2020-2022 | T5 | 4 Cyl 2.0 L GAS
- V90 | 2018-2021 | T5 Inscription, T5 R-Design, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2017-2021 | T5, T6, T6 Ocean Race | 4 Cyl 2.0 L GAS
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Volvo Brake Booster Part Number: 31423490
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S90 | 2018-2021 | T5 Momentum, T6 Inscription, T6 Momentum, T8 Inscription, T8 Momentum | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Power Booster Part Number: 31423510
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Brake Booster; Power Booster
Fits the following Volvo Models:
- S60 | 2016-2018 | T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
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Volvo Power Booster Part Number: 31423602
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Brake Booster; Power Booster
Fits the following Volvo Models:
- S60 | 2016-2018 | T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
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Volvo Brake Booster Part Number: 31687130
$657.15 MSRP: $870.17
You Save: $213.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
- Replaces: 31400315
Fits the following Volvo Models:
- XC60 | 2018-2019 | T8 Inscription, T8 Momentum, T8 R-Design | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- XC90 | 2016-2019 | T8 Excellence, T8 Inscription, T8 Momentum, T8 R-Design | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Brake Booster Part Number: 32256771
$476.16 MSRP: $620.00
You Save: $143.84 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
- Replaces: 32130242
Fits the following Volvo Models:
- XC40 | 2019-2023 | B4 Plus, B4 Ultimate, B5 Core, B5 Plus, B5 Ultimate, T4 Inscription, T4 Momentum, T4 R-Design, T5 Inscription, T5 Momentum, T5 R-Design | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC40 Recharge | 2021-2023 | Base, Core, Plus, Ultimate | BATTERY EV (EV/BEV)
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Volvo Brake Booster Part Number: 30793673
$887.15 MSRP: $1174.72
You Save: $287.57 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Brake Booster; Power Booster
Fits the following Volvo Models:
- C70 | 2002-2004 | Base | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S60 | 2002-2009 | 2.4, 2.4T, 2.5T, 2.5T AWD, AWD, Base, R, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- S80 | 2002-2006 | 2.5T, 2.5T AWD, 2.9, T6, T6 Premier | 5 Cyl 2.5 L GAS, 6 Cyl 2.9 L GAS
- V70 | 2002-2007 | 2.4, 2.4T, 2.5T, 2.5T AWD, AWD, Base, R, T5, X/C | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2003-2007 | Base, Ocean Race, X/C | 5 Cyl 2.5 L GAS
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Volvo Brake Booster Part Number: 31273665
$887.15 MSRP: $1174.72
You Save: $287.57 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- XC90 | 2003-2009 | 2.5T, 3.2, Base, T6, V8, V8 Ocean Race, V8 Sport | 5 Cyl 2.5 L GAS, 6 Cyl 2.9 L GAS, 6 Cyl 3.2 L GAS, 8 Cyl 4.4 L GAS
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Volvo Brake Booster Part Number: 31273684
$887.15 MSRP: $1174.72
You Save: $287.57 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- C70 | 2001-2004 | Base | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS
- S60 | 2001-2009 | 2.4, 2.4T, 2.5T, 2.5T AWD, AWD, Base, R, T5 | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- S80 | 1999-2006 | 2.5T, 2.5T AWD, 2.9, T6, T6 Premier | 5 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 2.9 L GAS
- V70 | 2001-2007 | 2.4, 2.4T, 2.5T, 2.5T AWD, AWD, Base, R, T5, X/C | 5 Cyl 2.3 L GAS, 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC70 | 2003-2007 | Base, Ocean Race, X/C | 5 Cyl 2.5 L GAS
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Volvo Brake Booster Part Number: 31274809
$1068.37 MSRP: $1472.19
You Save: $403.82 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Power Booster
Fits the following Volvo Models:
- S80 | 2007-2010 | V8 | 8 Cyl 4.4 L GAS

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1-20 of 27 Results

Volvo Brake Booster Parts and Q&A

Brake Booster
3516093
Q: How to check the power brake function and carry out the removal and installation of the brake booster on Volvo 740?
A:
To check the power brake function, deprive it of vacuum by depressing the brake pedal about five times, then depress the brake pedal and start the engine - its position should drop slightly if functioning properly. For a pressure test of the system, brake pedal pressure should be applied for approximately 20 seconds and then high pedal pressure applied for 5 seconds. pedal position should not drop as a drop in the pedal position indicates brake fluid leakage or a booster vacuum leak. For removal and installation purposes, first disconnect the negative battery cable and then remove the master cylinder and disconnect the vacuum hose and check valve from the booster. If necessary, disconnect the fuel filler and the vacuum pump and place them out of the way. Inside the vehicle, remove the soundproofing and disconnect the brake pedal rod, remove the power booster retaining nuts and remove the power booster. Before the installation of the new booster check the valve seal and replace it if necessary, making sure that the flange of the seal is correctly positioned. For the 2 x 8 inch booster, place the sealing washer and seal on the booster and then place the booster back in the car. Reconnect the brake pedal to the booster rod, refit the soundproofing and install the master cylinder, check valve and vacuum hose. Finally, bleed the brakes and clutch if fitted, and reconnect the negative battery cable.
Brake Booster
30644331
Q: How to test and remove the Brake Booster unit on Volvo V40?
A:
To check the working of the brake booster, depress the footbrake several times to exhaust the vacuum and start the engine whilst continuing to press the pedal firmly; there should be a noticeable give in the brake pedal as the vacuum builds up. After turning the engine on for at least two minutes, turn the engine off and apply the brake pedal, which should feel normal with additional applications giving a firmer pedal and reduced pedal stroke. If the brake booster no longer works as expected, check for the brake booster check valve; if it still fails, the brake booster must be renewed as it cannot be repaired. For right-hand-drive models, to remove the master cylinder, disconnect the battery negative lead, enhance access by removing the engine cover and unclipping the coolant expansion tank, clean the master cylinder and brake booster area, and remove the brake pipe retaining clip bolt before removing the master cylinder. On manual transmission models, also remove the clutch master cylinder, carefully ease out the vacuum hose valve from the brake booster, remove the driver's side lower panel, and disconnect the footwell light wiring. Unclip the control module, remove the control module holder, withdraw the clevis pin fixing the pushrod to the pedal, remove the brake booster retaining nuts, then maneuver the brake booster out of position, recovering the gasket for inspection. For left-hand-drive models, similar steps are followed for the removal of the master cylinder and the driver's side lower panel, and withdrawal of the clevis pin and removal of the brake booster retaining nuts, and the brake booster is maneuvered out and the gasket inspected. For refitting on right-hand-drive models, make sure to have clean mating surfaces, fit the gasket to the back of the brake booster, fit the pushrod to the pedal, fit and tighten the brake booster nuts, put grease on the clevis pin, secure the control module and relay box, connect the vacuum hose again, and re-attach the coolant expansion tank. On manual transmission models, also refit the clutch master cylinder and the braking system master cylinder, and bleed the complete hydraulic braking system and the clutch system. For left-hand-drive models, perform the same operations and re-fit the master cylinder while bleeding the entire hydraulic system.