Mercury Mariner brake failure problems

Filed Sep 12, 2022 · Brakes · OK

Driving downhill after dropping my children off at school heard a loud popping noise and brake pedal fell to the floor. Total loss of brakes. Coasted to the side off the road narrowly avoiding busy intersection. Vehicle was looked at by mechanic, traced to faulty ABS Sensor. Serious safety hazard— Recall must be issued immediately to prevent accidents and injuries!

Filed Jun 30, 2022 · Brakes · 86,000 miles · GA

The contact owns a 2009 Mercury Mariner. The contact stated that while attempting to apply the brake, an excessive amount of pressure was needed to depress the brake pedal before the vehicle stopped. The contact stated that the brake pedal went to the floor. The contact had taken the vehicle to a certified mechanic who was unable to identify the cause of the failure. The vehicle had not been repaired. The contact stated that the failure was related to the federal safety agency Campaign Number: 19V904000 (Service Brakes, Hydraulic). The manufacturer was made aware of the failure and confirmed that the VIN was not included. The approximate failure mileage was 86,000.

Filed Feb 17, 2022 · Brakes · CA

Second time the power brake pedal assembly has failed. The assembly failed in 19th February 2013 and had to be replaced by Fremont Ford. The power brakes failed completely and it had to be towed in. The part is BM6Z-2455-A. The Power brake assembly electronics failed again in January 26 and I have to drive it into the dealership with failing brakes. I was informed that the part is no longer manufactured and is unavailable from Ford. Failure of brake electronics in this hybrid represents a hazard if the brakes fail from failing electronics and the car is unable to stop. We are currently searching for part from a scrapped vehicle. The car is currently at Livermore Ford 1‑925‑273‑7814. I think that the car should be recalled and defects in power brake module investigated and redesigned part should be installed before other cars brakes fail.

Filed Jun 15, 2021 · Brakes · MO

I lost all braking ability and the pedal goes to the floor. This is a Mercury Mariner Hybrid and Ford Escape Hybrid issue, it doesn't affect the non-hybrid models. Ford knows about this as there are hundreds and hundreds of complaints online about it and it's a $5000+ fix. I have not been able to drive my Mariner Hybrid since 2018.

Filed Apr 10, 2021 · Brakes · 98,000 miles · IN

Driving, coming to a stoplight, the brakes suddenly failed, the brake pedal went all the way to the floor. Pumping I was able to get just enough brakes to stop before colliding with the car in front of us. The service ABS and emergency brake service warning lights came on after the near collision. I took the car to a ford dealership and was told the hcu unit had failed. This is a $4,000 part that we had already replaced at 76,000 miles,. The new part failed again without warning only 22,000 miles later.

Filed Jan 19, 2021 · Brakes · 120,000 miles · MI

The brake pedal goes straight to the floor leaves you with no brakes. This is due to the ABS hydraulic control module failing same as other ones in ford and mercury's being recalled. This is terrible and dangerous and they refuse to help even though thousands of customers with mariners and escapes are having identical problems. Does multiple people have to die before they recall these? This happened while on the highway at 65mph. Terrible and dangerous.

Filed Nov 5, 2020 · Brakes · 116,175 miles · SC · crash

My daughter was involved in an accident due to faulty brakes. We have had the vehicle in to have repairs at three different shops, the last two being at ford. The first two shops could never get the brakes right. Ford finally got them to work for a period of time. They went out again. Ford had the car for another month- it takes months every time. Paid another $2445. And still no brakes. Have contacted ford corporate and they refuse to help or give me documentation to that effect. Ford cases are cas-28178357 and cas-27857368. I have two other mariners and this one just isn't right. Please advise my options. I don't want to sell or trade this with a problem that could possibly hurt or kill someone. Thanks!

Filed Sep 19, 2017 · Brakes · 140,000 miles · MD

While driving on the highway check brake system message and brake light comes on vehicle braking becomes very hard to stop. After stopping vehicle and turning vehicle off and on several times brake warning light goes off and vehicle drives normally for a few days than problem comes back. While at a light one day brake warning light came on drove for approximately 1 mile and no brakes at all was able to turn in to a parking lot and apply the emergency brakes to stop. Left vehicle over night the next day turned vehicle on and off several time and brakes began to work. Made appointment with dealer who advised it will be three weeks to get it in. After three weeks to take vehicle in a week later was advised ABS hcu was probably bad. Cost for new ABS hcu module $4700 for the part alone. Picked up vehicle without having it fixed and drove locally for a few weeks with brake in "manual mode" until I tried to stop for a yellow light in the rain and slid through the intersection since only the back brakes works in manual mode. Later ordered a refurbished ABS hcu module cost $1400.00, the ford dealer is the only one who can install unit since the module has to be programed to the vehicle software. Took two weeks to get an appointment dealer had vehicle for another six weeks trying to program and bleed brake system. Dealer finally installed the other ABS hcu unit that was sent to me when I advised the refurbishing company that the dealer was having issues with the first one. Dealer advised that they installed the replacement ABS hcu and replaced the brake lines, and the brakes started to work labor cost $1900.00. I'm glad to be here to report this safety issue the next person would probably not be so lucky.

Filed Aug 9, 2017 · Brakes · 100,000 miles · SC · crash · 1 injury

Have had multiple brake failures including an accident that my daughter was involved in as a result of brake failure. The brakes will work fine for a short period of time and then out of nowhere you step on the brake and there's just a soft pedal for about 3/4 of the was before you get a very soft brake. Into this for thousands and now ford says a hydraulic brake sensor is the problem for between $2100-2400. Heard that it was fixed every time I've picked it up. Dangerous!!! My daughter or someone else could have been killed.

Filed Mar 31, 2015 · Brakes · 80,000 miles · IN

Tl* the contact owns a 2006 mercury mariner. The contact stated that the brakes failed without warning. The contact was able to merge to the side of the road without incident. After inspecting the vehicle, the contact noticed that the two front driver side brakes lines connected to the caliber fractured. The manufacturer was made aware of the failure. The vehicle was repaired. The failure mileage was 80,000.