2009 Mercury Mariner: brake failure

5 of the 315 complaints about the 2009 Mercury Mariner describe brake failure.

owner complaints: 5
of this car's complaints: 2%
recalls: 0

Is there a fix? 4 service bulletins cover this area of the car. See below

Brake failure by model year

2010
2
2009
5
2008
3
2006
3
2005
1

What owners say

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 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 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.