logo

Mercedes-Benz 420SEL Brake Hose Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(18)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(18)

Brake Hose Replacement Service

How much does a Brake Hose Replacement cost?

On average, the cost for a Mercedes-Benz 420SEL Brake Hose Replacement is $197 with $36 for parts and $161 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1991 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Driver Side Rear ReplacementEstimate$270.04Shop/Dealer Price$318.44 - $396.67
1989 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Driver Side Front ReplacementEstimate$242.74Shop/Dealer Price$292.24 - $369.73
1987 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Passenger Side Rear ReplacementEstimate$233.24Shop/Dealer Price$280.99 - $357.16
1988 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Passenger Side Front ReplacementEstimate$242.74Shop/Dealer Price$292.17 - $369.60
1990 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Driver Side Rear ReplacementEstimate$236.04Shop/Dealer Price$284.53 - $362.84
1990 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Passenger Side Front ReplacementEstimate$245.54Shop/Dealer Price$295.74 - $375.32
1990 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Driver Side Front ReplacementEstimate$254.54Shop/Dealer Price$304.31 - $383.57
1987 Mercedes-Benz 420SELV8-4.2LService typeBrake Hose - Driver Side Front ReplacementEstimate$251.74Shop/Dealer Price$301.98 - $380.03
Show example Mercedes-Benz 420SEL Brake Hose Replacement prices

What is the brake hose and how does it work?

The hydraulic steel brake lines that carry brake fluid in your car are bolted to the frame of the vehicle. These metal brake lines must eventually attach to the individual wheel calipers — or wheel cylinders in the case of drum brakes — at all four wheels. Since the wheels constantly move up and down, or left and right in the case of the front wheels, the brake line that attaches to the individual wheel calipers must be highly flexible. Enter the brake hose: a flexible, synthetic, reinforced-rubber hose designed to withstand the 1,000 PSI plus pressures that occur when you apply the brakes. There is at least one brake hose at each wheel position, and sometimes two depending on the suspension design. At the end of each rubber hose are steel connections with seals to maintain a leak-proof connection.

Brake Hoses

When to consider replacing the brake hose:

  • Physical damage. If there are cuts, cracks, abrasions, bulging, or excessive rust at the hose fitting ends, the hose should be replaced.
  • Leaks. Seepage at hose fittings, or leaks anywhere along the hose, requires replacement. If there is a leak, or the hose is bulging, you may notice that the brake pedal is lower than usual or spongy.
  • Internal hose failure. Occasionally, the lining on the interior of the hose can separate, blocking the flow of hydraulic fluid. This is diagnosed using test gauges. A fluid blockage that prevents the brakes from releasing may manifest itself as dragging brakes or overheated brakes.
  • End of Lifetime. Although many brake hoses can last 20 plus years if well-made out of quality materials, after 10 years of service it is best to replace the hoses with new ones for maximum reliability and safety.

How do mechanics replace the brake hose?

  • The vehicle is jacked up and safely supported with steel jack stands.
  • The wheel and tire assembly are removed.
  • A pan is put in place to catch brake fluid.
  • Residual pressure in the brake line is relieved by momentarily opening the brake caliper bleeder screw.
  • Each hose end is detached. At the caliper, the attachment is often a banjo style bolt with one-time-use copper washers. The attachment at the vehicle frame is typically a flare connection, so a tube nut must be loosened. Once both ends are detached, the hose is removed.
  • The new hose is installed using new copper-sealing washers and the factory OEM torque on the tube nut and the banjo bolt.
  • Finally, the brake system is bled to remove all air and the vehicle is road tested. A final check for leaks is performed after the road test.

Is it safe to drive with a brake hose problem?

No. Properly working brakes are always essential. If you suspect damage to the brake hoses or see leaks it is a good idea to have a professional evaluate your car’s brakes.

When replacing a brake hose keep in mind:

  • If a brake hose is replaced due to aging, the mechanic will check all of the other brake hoses as they may be worn or defective as well.
  • Some vehicles have flexible, braided stainless steel brake hoses, or other specially designed hoses. If your car does not have ordinary synthetic rubber hoses, a mechanic will let you know what type of new brake hose you have and what your replacement options are.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercedes-Benz 420SEL services completed
198+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(18)
Rating Summary
17
0
0
1
0
17
0
0
1
0

Carlos

28 years of experience
516 reviews
Request Carlos
Carlos
28 years of experience
Request Carlos
by Alfredo
Mercedes-Benz 420SEL V8-4.2L - Alternator Repair - Riverside, California
Carlos is chill dude; showed up early and helped me out in under an hour. He also gave me tips on how to become a mechanic. Honestly will book him again if anything happens.

Patrick

33 years of experience
1426 reviews
Request Patrick
Patrick
33 years of experience
Request Patrick
by Jonell
Mercedes-Benz 420SEL V8-4.2L - Car is not starting - Pflugerville, Texas
Very good.

Carlos

28 years of experience
516 reviews
Request Carlos
Carlos
28 years of experience
Request Carlos
by Laszlo
Mercedes-Benz 420SEL V8-4.2L - Serpentine/Drive Belt - Ontario, California
Carlos came on time (unlike others who cancelled the appointment several times). He came, TWICE because of my car needed more parts than expected. Great job, friendly, very professional, I HIGHLY recommend him, and will make sure next time - if needed - he will be the one I ask for. Thank you Carlos

Tien

23 years of experience
903 reviews
Request Tien
Tien
23 years of experience
Request Tien
by Mary
Mercedes-Benz 420SEL V8-4.2L - Power Window Switch Replacement (Passenger Side Front, Passenger Side Rear) - Oakland, California
Tiens was very nice to work with. He fixed 2 things and ordered parts for other items.

Excellent Rating

(18)
Rating Summary
17
0
0
1
0
17
0
0
1
0
Number of Mercedes-Benz 420SEL services completed
198+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

How Long Does an Interior Door Handle Last?
Being Being able to get in and out of a vehicle is only possible when the door handles are working properly. Each of the doors on a car will have two handles, one on the inside and one on the...
Read more
Child Seat Safety Laws in Mississippi
In In Mississippi, in 2008, 76% of children who died in motor vehicle accidents were not properly restrained. This should tell you how important it is that children be effectively restrained in motor vehicles, and why there are laws in...
Read more
How to Soundproof Your Car
When When you install a quality sound system (https://www.yourmechanic.com/article/4-essential-things-to-know-about-your-car-s-stereo-and-speakers), you want to enjoy your music without road noise, not disturbing those outside of the car. Sound deadening allows you to eliminate much of the vibration which comes with higher levels...
Read more

Reverse, courtesy, & license plate lights are out

Its very possible there is a ground issue as the only thing in common with all of these lights is ground G402.The ground wires meet up at a splice point prior to the ground point. To verify this, a voltage...
Read more

Does my vehicle have an oil pressure sender or oil pressure sensor or both and where is it located?

Your motor (454/7.4L Big Block Chevy) should have an oil pressure sending unit that is typically mounted just above the oil filter housing. This is a relatively small unit (about the diameter or a quarter or slightly bigger) with threads...
Read more

Car goes into limp mode when the check engine light and VSA light comes on

The lights that you have on and the vehicle going into fail safe mode is an indication you have a major system failure that will require computer to be tested for codes first. There are many possible codes it can...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. 420SEL
  5. Brake Hose Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE