2011-2014 Ford Edge Brake Fluid Type and Flush Interval

By Core Brake Parts Tech Team — Circleville, OH warehouse

Ford changed the brake fluid spec partway through this Edge generation. The 2012 and 2013 owner's guides call for Motorcraft High Performance DOT 3 (PM-1-C), while the 2014 manual calls for Motorcraft DOT 4 LV High Performance fluid (PM-20, spec WSS-M6C65-A2). Ford's owner schedule has no fixed flush mileage for these years, but Ford's own fluid division lists a three-year change-out interval for PM-20, and that is the interval we recommend for every 2011-2014 Edge.

Which Brake Fluid Your 2011-2014 Edge Takes

The spec lives in the Capacities and Specifications table of the owner's manual. Here is what Ford printed for each model year we could pull the original manual for:

If you own a 2011, check the Capacities and Specifications page in your own owner's guide or the printing on the reservoir cap before you buy fluid. The 2012 guide was the earliest one we verified for this article, so we are not going to guess at the 2011 wording.

The good news: you do not have to hunt for two different bottles. Ford's fluid division states that PM-20 DOT 4 LV is recommended for Ford vehicles that specify WSS-M6C65-A2 (DOT 4 LV) and WSS-M6C65-A1 (DOT 3). The 2012 and 2013 Edge list WSS-M6C65-A1 as an accepted spec, so a bottle of PM-20, or an equivalent fluid that meets WSS-M6C65-A2, works in any year of this generation that shares that spec. The one thing Ford warns against is putting PM-20 in a vehicle that calls for WSS-M6C65-A3 (DOT 5.1), which none of these Edge manuals do.

None of these manuals publish a capacity in ounces; they simply say to keep the level between the MIN and MAX marks. For a full flush, have more than one sealed bottle on hand so the reservoir never gets bled dry mid-job.

How Often to Flush the Brake Fluid

The 2013 and 2014 Edge normal scheduled maintenance tables do not list a brake fluid replacement mileage. What they do list, at every oil change interval shown on the information display, is to inspect brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake, with a footnote not to exceed one year or 10,000 miles between service visits.

No printed interval is not the same as "never." Brake fluid is glycol-based and pulls moisture out of the air through hoses, seals and the reservoir vent. Ford's product sheet for PM-20 puts the recommended change-out interval at every three years. On a 2011-2014 Edge that means most of these vehicles are several flushes overdue if the fluid has never been touched.

• Normal driving: flush every three years regardless of mileage.
• Towing, mountain driving or hard stop-and-go: test the fluid at every brake inspection and flush sooner if it fails.
• Any brake job that opens the hydraulic system: caliper, hose or master cylinder replacement is the right time to flush the whole system rather than just bleeding the corner you touched.

Why Old Fluid Matters: Boiling Points

Federal Motor Vehicle Safety Standard 116 sets minimum boiling points for each fluid grade, both fresh (dry) and after it has absorbed moisture (wet). The drop is large, and it is the reason a fluid flush is a safety item and not an upsell.

The "LV" in DOT 4 LV means low viscosity. At -40 the PM-20 sheet lists a far thinner fluid than the federal DOT 4 ceiling, which lets the ABS and stability control pump move fluid quickly in cold weather.

When fluid gets hot enough to boil in a caliper, it forms vapor, and vapor compresses. The pedal goes soft or sinks right when you need it most, usually at the bottom of a long grade or after repeated hard stops with a load on board.

Symptoms Your Edge Needs a Brake Fluid Flush

• Dark fluid in the reservoir. Fresh fluid is colorless to amber (FMVSS 116 requires that color range for DOT 3 and DOT 4); PM-20 is yellow when new. Brown or near-black fluid is contaminated.
• Soft or spongy pedal that firms up when pumped, or a pedal that fades after several hard stops.
• Brake Fluid Level Low message in the cluster. The owner's manual says this means the system should be inspected immediately. A low level usually means worn pads or a leak, not evaporation.
• Red brake warning light with the parking brake released. Ford states this indicates low fluid or a brake system malfunction and should be checked right away.
• Three or more years since the last flush, or no record of one at all.

A test strip or an electronic moisture tester gives you a quick read, but on a vehicle this age with no service history, the answer is almost always to flush.

How to Flush It and What to Replace at the Same Time

The job is a standard four-wheel bleed on a system with ABS and stability control. The rear rotors and rear pads we list for the 2.0L Edge show this generation runs disc brakes at all four corners, and the owner's manual notes the foot-pedal parking brake acts on the rear brakes only.

1. Park on level ground, set the parking brake, and remove old fluid from the reservoir with a clean syringe.
2. Refill with fresh fluid from a sealed bottle. Federal rules require every brake fluid bottle to carry a warning to keep the container clean and tightly closed to prevent moisture absorption, so do not use a half-empty bottle that has been sitting open on a shelf.
3. Bleed each caliper in the sequence given in the Ford workshop manual until clean fluid with no bubbles comes out, topping up the reservoir so it never runs low.
4. If air gets into the ABS hydraulic unit, a scan-tool assisted bleed may be needed. Keep the reservoir full and you will usually avoid that.
5. Tighten the bleeder screws to the value in the factory service manual, set the level between MIN and MAX, and road test at low speed first.

Difficulty is moderate for a home mechanic with a helper or a one-person bleeder kit, and about an hour for a shop. Keep brake fluid off paint, and never reuse fluid that comes out of the bleeders.

A flush is the natural moment to catch other wear. If the pads are thin or the rotors are grooved, do them first and flush last so the caliper pistons push back into fresh fluid. For the 2.0L EcoBoost Edge we stock EBC Redstuff ceramic front brake pads for the 2011-2014 Edge 2.0L, EBC Yellowstuff rear brake pads for the Edge 2.0L, and matching EBC USR slotted rear brake rotors for the 2011-2014 Edge 2.0L. For other engines, browse our brake pads, brake rotors and brake hoses; a cracked or swollen rubber hose found during the flush should be replaced before the new fluid goes in.

Frequently Asked Questions

Can I use DOT 4 LV in a 2012 or 2013 Ford Edge that calls for DOT 3?

Yes, with Ford's own fluid. Ford lists Motorcraft PM-20 DOT 4 LV as recommended for vehicles specifying WSS-M6C65-A1 (DOT 3), which is one of the two specs printed in the 2012 and 2013 Edge manuals. Using it gives you a higher boiling point and better cold-weather flow.

Can I use DOT 3 in a 2014 Edge?

The 2014 manual specifies DOT 4 LV meeting WSS-M6C65-A2 and warns that using any other fluid may degrade brake performance and not meet Ford performance standards. Stick with DOT 4 LV on a 2014.

How much brake fluid does a Ford Edge hold?

Ford does not publish a volume for this generation; the capacity is listed only as between the MIN and MAX marks on the reservoir. Plan on more than one bottle for a complete flush so you never run the reservoir dry.

Can I use DOT 5 silicone fluid?

No. DOT 5 is silicone based (FMVSS 116 requires it to be dyed purple) and is not what Ford specifies for the Edge. Use only the glycol-based fluid named in your owner's manual.

Why is my brake fluid low if there is no leak?

As pads wear, the caliper pistons move outward and more fluid sits in the calipers, so the reservoir level drops. Check pad thickness before topping off, and never overfill above MAX on worn pads, because new pads will push that fluid back up.

Is a brake fluid flush on the Ford maintenance schedule for these years?

Not as a mileage line item in the 2013 and 2014 schedules, which call for brake inspections at every oil change instead. Ford's PM-20 product information recommends a three-year change-out interval, which is the practical rule to follow.

Sources

1. Ford: 2012 Edge Owner's Guide - Maintenance product specifications: High Performance DOT 3, PM-1-C, WSS-M6C62-A or WSS-M6C65-A1; parking brake applies rear brakes only
2. Ford: 2013 Edge Owner's Manual - Technical specifications: PM-1-C DOT 3; scheduled brake inspections at each oil change; foot-pedal parking brake
3. Ford: 2014 Edge Owner's Manual - DOT 4 LV PM-20, WSS-M6C65-A2; fluid warnings; Brake Fluid Level Low message; 1 year or 10,000 mile service footnote
4. Ford Motorcraft Chemicals and Lubricants: DOT 4 LV High Performance Brake Fluid - Approved for WSS-M6C65-A2 and WSS-M6C65-A1; three-year change-out interval; boiling points and -40 viscosity
5. 49 CFR 571.116 (FMVSS 116), Cornell Legal Information Institute - Minimum dry and wet boiling points, viscosity limits, color and container labeling rules