# 2015 Honda Civic Hybrid brake fluid leak repair

**URL:** <https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889>\
**Category:** Maintenance/Repairs\
**Tags:** civichybrid, honda\
**Created:** [May 18, 2021, 2:05am UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889 "2021-05-18T02:05:58Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![Puzzlednon-mechanci](https://avatars.discourse-cdn.com/v4/letter/p/bcef8e/32.png) [@Puzzlednon-mechanci](https://community.cartalk.com/u/Puzzlednon-mechanci)\
**Post date:** [May 18, 2021, 2:05am UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/1 "2021-05-18T02:05:58Z")

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My 2015 Honda Civic Hybrid has less than 34K miles and is leaking brake fluid inside car around pedal. Dealer is telling me fixing will mean a new master brake cylinder and cost will be $5500. How can a car with so few miles need a $5500 repair that is not manufacturer’s defect?

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [May 18, 2021, 11:35am UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/2 "2021-05-18T11:35:49Z")

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Possible it was a defect.  
Suggest you take it to an independent shop for estimate, $5500 sounds absurd.

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**Author:** ![oldnotdeadyet](https://avatars.discourse-cdn.com/v4/letter/o/a6a055/32.png) [@oldnotdeadyet](https://community.cartalk.com/u/oldnotdeadyet)\
**Post date:** [May 18, 2021, 1:04pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/3 "2021-05-18T13:04:35Z")

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The master cylinder costs just $50-$100. That dealer has a lot of explaining to do! Get away from him as fast as possible…but not too fast since you have a bad master cylinder.

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**Author:** ![TXdealer](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TXdealer](https://community.cartalk.com/u/TXdealer)\
**Post date:** [May 18, 2021, 5:21pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/4 "2021-05-18T17:21:40Z")

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With an estimate that high, I would assume that the fluid leak is related to a hybrid system component. I would verify with the dealer if the defect should be part of the IMA warranty, which the car should still be under. If it is not, I would reach out to Honda to ask them for assistance.

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [May 18, 2021, 7:14pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/5 "2021-05-18T19:14:54Z")

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The hydraulic booster unit is leaking, the servo assembly which includes the master cylinder is $3900.

I have replaced many expensive hydraulic brake assemblies, sometimes when failure is common on certain models the manufacture will provide a warranty extension on the brake unit.

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [May 19, 2021, 1:04am UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/6 "2021-05-19T01:04:20Z")

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> [@oldnotdeadyet](#):
>
> The master cylinder costs just $50-$100.

Well, no. This is a hybrid, the brake control system is completely different than on a conventional car.

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**Author:** ![Beancounter](https://avatars.discourse-cdn.com/v4/letter/b/59ef9b/32.png) [@Beancounter](https://community.cartalk.com/u/Beancounter)\
**Post date:** [May 19, 2021, 5:07pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/7 "2021-05-19T17:07:55Z")

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I did a quick look at the KBB Trade In value which is in the $10-$12 range so the parts cost of the servo assembly is over 1/3 of the entire value of the car?

My goodness! A hybrid is definitely NOT in my future.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [May 19, 2021, 5:19pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/8 "2021-05-19T17:19:38Z")

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Honda has a long and troubled history with its hybrids. Toyota’s have been fine.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [May 19, 2021, 5:30pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/9 "2021-05-19T17:30:34Z")

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> [@Beancounter](#):
>
> I did a quick look at the KBB Trade In value which is in the $10-$12 range

Yikes!  
Talk about depreciation!  
😉

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [May 19, 2021, 5:31pm UTC](https://community.cartalk.com/t/2015-honda-civic-hybrid-brake-fluid-leak-repair/176889/10 "2021-05-19T17:31:42Z")

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Toyota vehicles have had many hydraulic brake booster failures.

The warranty for the brake booster assemblies on the 2010-2015 Prius has been extended to 10 years.

> **[MC-10145759-9999.pdf](https://static.nhtsa.gov/odi/tsbs/2018/MC-10145759-9999.pdf)**
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> 44.58 KB
