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Member Since 14 Apr 2013
Offline Last Active Jun 16 2014 09:27 AM

Topics I've Started

Unexplained Battery Drain

15 June 2014 - 10:23 PM

I've just had my first encounter with unexplained battery drain on a 2010 reg S-Max Ecoboost.


Car was last used on a Thursday afternoon, and battery was dead by Sunday morning, registering just under 6V on a meter. The lights were not left switched or left on overnight.


The AA came over, and jump-started the vehicle - the battery started charging immediately at the correct voltage - the battery is receiving charge so it is OK, and the alternator is OK as well.


After about 10 minutes the AA technician turned the engine off - the lights, radio and other electrical systems appeared to switch off when the engine was cut. He then measured the level of ambient discharge/drain from the battery.


This was where it started becoming odd. While it can take some time for the car to shut down completely, this was what was observed:


- For about 5 min, the level of discharge remained at 0.4A for about 5 minutes, but every now and then it would spike up momentarily to about 1-2A and then stabilize at 0.4A

- After about another 3-5 min, the drain decreased steadily to 0.3A, then 0.2A and 0.1A after which measurements were stopped.


The AA advised me have the electrics checked out by Ford as they weren't sure of what the problem was.


Anyone has a clue?


It'll be helpful before I take the car in and end up paying money to diagnose where the problem lies - which Ford may not detect.




S-Max Front Brake Discs: What Size?

07 March 2014 - 11:09 AM

I've got a S-Max 2.0 petrol Ecoboost SCTi (203PS version) and need to know what is the correct size for the front brake discs.


Confusingly, some websites selling car parts tell me it's 300mm diameter, others 316mm.


I think the 300mm is for diesels and I think, also for the older pre-ecoboost/non-turbo petrols. The 316mm seems to be for the older 2.5L petrol Turbo.


Does anyone know better?





Screeching Noise When Reversing

11 December 2013 - 10:46 AM

I get a very audible low-pitched noise when my S-Max is reversing - almost always when the brakes are applied when parking the vehicle.


Any idea what's causing it?


I'm not sure if it has got to do with the brake pads or discs because I don't get the same problem when the brakes are applied during normal forward driving.


Thanks for any feedback,



Driving On Poor Quality Roads: Suggestions?

17 July 2013 - 11:01 AM

I'm looking for suggestions and recommendations as to how to improve the ride quality.


The roads around my area are generally poor and my S-Max thuds about when going through potholes (some of them quite deep) and bumps, even at low speeds of ~15 mph.


Otherwise, the occasional journey on motorways and most A roads is generally good, although I'd say there's always room for road grip to improve.


Wheels and tires are the factory standard 17" alloys. Vehicle has clocked about ~20k miles.


Is it worth changing the OE shock absorbers, and if so what should I change them to?

Brake Fluid Levels Empty/low

29 June 2013 - 07:54 PM

I just noticed that the brake/clutch fluid resevoir in my S-Max was pretty much empty, i.e. below the Min line. I thought that this is kind of strange, as it was serviced 4 months ago and definitely had a full top up.


So I'm not sure what happened in between those two times. I am pretty sure that it was ok maybe a month ago. When I drive the car, it all seems normal so this is rather strange.


On consulting the manual, it says to have it checked out asap, rather than just advising you to top it up which would have been sort of the instinctive thing to do.


Wondering if something else is amiss that I should be concerned with? Any advice appreciated.