What causes a Ford Mondeo battery to go flat?

Ford Mondeo – 2008 Mondeo – ‘Low Battery’ AGAIN…! – Railroad. There are three main reasons why a battery will go flat: 1. The battery is not serviceable. 2. A fault with the charging system. 3. Something on the car is not switching off when it’s supposed to and causing the battery to drain.

How many amps does a Mondeo battery hold?

Check your battery’s amp hour (A/h) rating. Let’s say it’s a 70A/h. That means that assuming it’s fully charged and in top condition you can draw 70 amps from it for one hour. Similarly you can draw 1 amp for 70 hours, or 35 amps for two hours.

What causes a car battery to go flat?

There are three main reasons why a battery will go flat: 1. The battery is not serviceable. 2. A fault with the charging system. 3. Something on the car is not switching off when it’s supposed to and causing the battery to drain.

When to check for drain on Ford Mondeo?

Checking for a drain on a modern car is not such an easy thing to do because the control units do not go into sleep mode until after a few minutes after everything has been locked up and shut down. This won’t happen if the bonnet is up and you’re working on the car.

What to do if your Mondeo battery is draining?

The heated screens usually come on with that though. Unplugging the modules behind the dash, applying a little contact cleaner and plugging them in and out a few times can help. Also look particularly at grounds in that area to see if any show signs of corrosion/disintegrating.

What’s the 57 seconds on a Ford Mondeo?

Don’t get obsessed about the ’57 seconds’; on a normally working car, there is a relay that clicks regularly – not sure it is is exactly 57 seconds, but regularly – and that doesn’t do any harm.

Is the battery on my Mondeo edge estate draining?

Battery Being Drained Flat On 59 Plate Mondeo Edge Estate. Battery Being Drained Flat On 59 Plate Mondeo Edge Estate. Had this car for about 8 months with no problems, but it has been run everyday, and in warmer weather !!.

When did the 59 plate Mondeo edge estate go flat?

Battery Being Drained Flat On 59 Plate Mondeo Edge Estate. Had this car for about 8 months with no problems, but it has been run everyday, and in warmer weather !!. Parked it up friday afternoon and didn’t try to start it til today (mon 21.1

How old is the battery on my Mondeo?

It had numerous faults despite being in warranty, including the original (less than 3 year old) battery going flat. The dealership adopted the “ostrich” pose, so we got rid. I run a 14 year old Mondeo as our second car, and it is on its original battery.

What should the amp hour be on a Ford Mondeo?

If possible leave the ammeter connected and close the bonnet with the ammeter outside so you can see it. Make sure the car is locked and observe the meter over a period of time, even an hour or so if you have to. About 0.2A is the maximum acceptable drain, and even that is a bit high. Check your battery’s amp hour (A/h) rating.

Can a Ford Mondeo be used as an EV?

Go somewhere else. You’ll probably have to pay, but at least you’ll have peace of mind. If a fault is found you can then present the evidence. If you cover no more than 100 miles per day and have easy access to a charging point at home or work, then an EV is ideal for you.

Why does my Mondeo Mk3 need a new alternator?

The most common cause given that a new alternator has been fitted is a smart charge circuit fault. The small connector on the alternator should have a 12 volt supply at pin 1, this is fed by fuse 30 in the fuse box under the bonnet so check for 12 volts at pin 1 and double check the fuse of it’s not there.

Why is the battery light on on my Mondeo Mk3?

I had a new alternator fitted to my 2001 Mondeo Mk3, petrol engine, the battery light stays on. The volts at the battery, engine not running 12.6volts, with engine running 14.7v. The alternator is delivering the notional correct voltage, but why is the battery light on continuously? Your advice would be appreciated.

What happens when you turn on the fans in a Mondeo?

Nothing else comes on in the car when the fans activate. the climate controls remain blank as does the convers display and radio. I checked the every fuse and relay in the engine fusebox, all are spotless and fuses intact. Same with the passenger fuse box. nothing suspect.

Are there any problems with the Ford Mondeo?

If you wish to know more about eventual problems of a specific car (e.g. real mileage, potential traffic accidents damages, odometer rollback, repairs, etc.), then we suggest going to HPI-Check. See also: Ford Mondeo Owners’ Reviews.

What’s the maximum battery drain on a Mondeo?

About 0.2A is the maximum acceptable drain, and even that is a bit high. Check your battery’s amp hour (A/h) rating. Let’s say it’s a 70A/h. That means that assuming it’s fully charged and in top condition you can draw 70 amps from it for one hour. Similarly you can draw 1 amp for 70 hours, or 35 amps for two hours.

What to do if your Ford Mondeo battery keeps going flat?

Make sure the lights in the boot and the footwells go out when you close the hatch or the doors. If they are working correctly it’s really then best to see an auto electrician and have him trace the problem. Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice.

What should the battery reading be on a Mondeo?

With your Mondeo turned off, you’ll connect the negative side of the meter to the negative battery post or wire. Touch the positive side of the voltmeter to the positive battery wire. With the engine off, you should get a reading somewhere between 12.0 volts and 12.6 volts. Now that you have a baseline, it’s time to turn the engine on.

What causes a Ford Mondeo battery to go flat?