What precautions and steps should be taken before starting work on the hydraulic hose on the BMW Z4?

It is necessary to put on the necessary gears and other precautions and warnings before commencing with the job. If you have to replace any line or hose, lose as less of fluid as possible, to do so first remove the master cylinder reservoir cap and place a piece of cellophane over the opening. The flexible hoses can be fitted with a brake hose clamp and the metal brake line fittings can be plugged or capped if necessary the moment they are disconnected; but one must be careful not to allow dirt to get into the system. Any fitting should have a rag placed underneath it to allow it capture any dripping fluid. Before removing the flexible hose you must first loosen the brake line filling nut before releasing the spring clip on the hose. In order to release brake line fittings, one has to use a flare-nut wrench while the area should be clean when disconnecting. If it is to replace a brake line it can be bought pre cut with the fitting nuts and end flares from the BMW dealers or can be made from kits from motor accessory shops though it required the measurement of the original to be very accurate. During installation do not over tighten line fittings, make certain that all the lines and hoses are properly routed without kinks and fasten in clips or brackets where provided. After installation pull the cellophane over the reservoir, purge the hydraulic system, wipe clean any over sprayed fluid and inspect for leaks.

Genuine BMW Z4 Hydraulic Hose

Brake Hydraulic Line

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17 Hydraulic Hoses found

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BMW Z4 Brake Hose Front
Part Number: 34306790550
$42.14 MSRP: $78.64
You Save: $36.50 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Hose, Flex Hose
- Position: Front
- Replaces: 34-30-6-771-720
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89), sDrive35is(E89)
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BMW Z4 Brake Hose Rear
Part Number: 34308836561
$32.45 MSRP: $60.55
You Save: $28.10 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Brake Hose, Flex Hose
- Position: Rear
- Replaces: 34-30-6-879-284
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
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BMW Z4 Brake Hose Front
Part Number: 34326766966
$79.18 MSRP: $91.56
You Save: $12.38 (14%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Hose, Flex Hose
- Position: Front
- Replaces: 34-32-1-165-587
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
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BMW Z4 Brake Hose Rear
Part Number: 34306879284
$32.45 MSRP: $60.55
You Save: $28.10 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Flex Hose
- Position: Rear
- Replaced by: 34308836561
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2020 BMW Z4 | M40i(G29), sDrive30i(G29)
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BMW Z4 Brake Hose Rear
Part Number: 34206784620
$42.14 MSRP: $78.64
You Save: $36.50 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Hose, Flex Hose
- Position: Rear
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89), sDrive35is(E89)
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BMW Z4 Brake Hose
Part Number: 34306879282
$46.33 MSRP: $86.45
You Save: $40.12 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Flex Hose
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
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BMW Z4 Brake Hose, Right
Part Number: 34306774342
$112.62 MSRP: $136.25
You Save: $23.63 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Flex Hose
- Position: Passenger Side
- Replaces: 34-30-6-762-580, 34-32-6-766-968
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
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BMW Z4 Brake Hose, Left
Part Number: 34306774341
$112.62 MSRP: $136.25
You Save: $23.63 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Flex Hose
- Position: Driver Side
- Replaces: 34-32-6-766-967, 34-30-6-762-579
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
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BMW Z4 Brake Hose
Part Number: 34326757744
$79.18 MSRP: $91.56
You Save: $12.38 (14%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Flex Hose
- Replaces: 34-30-6-762-185
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
View related parts
BMW Z4 Pressure Hose Assembly
Part Number: 21526869285
$26.78 MSRP: $35.47
You Save: $8.69 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pressure hose assy; Flex Hose
- Replaces: 21-52-6-778-819, 21-52-6-754-166
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89)
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BMW Z4 Pressure Hose Assembly
Part Number: 21526778819
$26.78 MSRP: $35.47
You Save: $8.69 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pressure hose assy
- Replaced by: 21526869285
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89)
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BMW Z4 Pipeline With Pressure Hose
Part Number: 34326853593
$40.49 MSRP: $47.49
You Save: $7.00 (15%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 34-32-6-779-080
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89), sDrive35is(E89)
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BMW Z4 Pipeline With Pressure Hose
Part Number: 34326853592
$40.49 MSRP: $47.49
You Save: $7.00 (15%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 34-32-6-779-079
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive28i(E89), sDrive30i(E89), sDrive35i(E89), sDrive35is(E89)
View related parts
BMW Z4 Pipeline With Pressure Hose
Part Number: 34326760455
$96.06 MSRP: $119.67
You Save: $23.61 (20%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 2.5i(E85), 3.0i(E85)
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BMW Z4 Pipeline With Pressure Hose
Part Number: 34326774386
$105.56 MSRP: $129.57
You Save: $24.01 (19%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 34-32-6-769-427, 34-32-6-769-813
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
View related parts
BMW Z4 Pipeline With Pressure Hose
Part Number: 34326774387
$80.97 MSRP: $97.76
You Save: $16.79 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 34-32-6-769-814
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2006-2008 BMW Z4 | Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
View related parts
BMW Z4 Clutch Pressure Hose
Part Number: 21526775008
$64.05
Product Specifications
- Other Name: Flex Hose
- Replaces: 21-52-6-757-543
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2008 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)

BMW Z4 Hydraulic Hose

The BMW Z4 Hydraulic Hose directs pressurized fluid to disengage the clutch when the driver presses on the pedal for easy and quick gear shifting. Also called a flexible hose, the Hydraulic Hose is the component located between the master and the slave cylinder that contains hydraulic oil to apply pedal force. The pedal force gets transmitted straight to the release fork. The release fork separates engine power from the transmission during every shift. The early Z4 roadsters featured a steel-reinforced rubber Hydraulic Hose that BMW says was selected due to its flexibility and ability to withstand high temperatures. Later BMW updates carried over this same material; however, they upgraded the design of the end couplings and the O-ring seals for stronger leak resistance and quicker installation with standard wrench sizes. Hydraulic Hoses are linked to a closed loop with valves and cylinders, so any breach of the hose could send fluid out and air in, thus ruining your clutch feel instantly. A simple visual check can prevent this from happening. When it becomes necessary to replace the BMW Hydraulic Hose, the DIYer usually routes the new Hydraulic Hose in the same way as the original hose, uses the same clamps to secure the hose, fills the reservoir with oil, and tests for drips to restore factory-smooth Z4 shifting confidence.

If you are looking for OEM BMW Z4 Hydraulic Hose, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW Z4 Hydraulic Hose that come backed by the manufacturer's warranty.

BMW Z4 Hydraulic Hose Parts Questions & Experts Answers

Clutch Pressure Hose
21526775008
Q:
What precautions and steps should be taken before starting work on the hydraulic hose on the BMW Z4?
Posted by Karisa R.
A:
It is necessary to put on the necessary gears and other precautions and warnings before commencing with the job. If you have to replace any line or hose, lose as less of fluid as possible, to do so first remove the master cylinder reservoir cap and place a piece of cellophane over the opening. The flexible hoses can be fitted with a brake hose clamp and the metal brake line fittings can be plugged or capped if necessary the moment they are disconnected; but one must be careful not to allow dirt to get into the system. Any fitting should have a rag placed underneath it to allow it capture any dripping fluid. Before removing the flexible hose you must first loosen the brake line filling nut before releasing the spring clip on the hose. In order to release brake line fittings, one has to use a flare-nut wrench while the area should be clean when disconnecting. If it is to replace a brake line it can be bought pre cut with the fitting nuts and end flares from the BMW dealers or can be made from kits from motor accessory shops though it required the measurement of the original to be very accurate. During installation do not over tighten line fittings, make certain that all the lines and hoses are properly routed without kinks and fasten in clips or brackets where provided. After installation pull the cellophane over the reservoir, purge the hydraulic system, wipe clean any over sprayed fluid and inspect for leaks.
Answered by BMW Parts Specialist Blaine / Jan 14, 2026

Genuine BMW Z4 Hydraulic Hose

17 Hydraulic Hoses found

BMW Z4 Brake Hose Front

BMW Z4 Brake Hose Rear

BMW Z4 Brake Hose Front

BMW Z4 Brake Hose Rear

BMW Z4 Brake Hose Rear

BMW Z4 Brake Hose

BMW Z4 Brake Hose, Right

BMW Z4 Brake Hose, Left

BMW Z4 Brake Hose

BMW Z4 Pressure Hose Assembly

BMW Z4 Pressure Hose Assembly

BMW Z4 Pipeline With Pressure Hose

BMW Z4 Pipeline With Pressure Hose

BMW Z4 Pipeline With Pressure Hose

BMW Z4 Pipeline With Pressure Hose

BMW Z4 Pipeline With Pressure Hose

BMW Z4 Clutch Pressure Hose

BMW Z4 Hydraulic Hose

BMW Z4 Hydraulic Hose Parts Questions & Experts Answers

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