What’s going on.

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Originally Posted by DiscoJeffster

Battery voltage is no indicator of health. It’s float voltage doesn’t correlate to the amperage it’s able to deliver. That said, that’s an interesting and related fault you have there. Maybe the failure of the battery saver relay has caused your battery to become really severely depleted/damaged? Dunno??

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I do have intermittent parasitic battery drain. Never been able to hunt it down. Maybe change the relay.

Does anyone know if the Battery Saver Relay is one of the replaceable relays on the fuse panel behind the glove box? If so which one is it? On a number of Ford forums the relay has been a implicated as a cause for parasitic battery drain.

I’m guessing you’re asking because you don’t have the wiring diagram? What model do you have?

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Originally Posted by DiscoJeffster

I’m guessing you’re asking because you don’t have the wiring diagram? What model do you have?

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2008 TDV6 SE
The Haynes manual has fuses and fusible links but not relays. It has the relays in the circuit diagrams but not the position on the central junction box.

Sorry don’t have D3 wiring but on the D4 2010 (which will be similar) it’s labeled as R11, Junction Box Central. Worth a look.

R250 is battery saver relay and fuse 1P (10A) the fuse.

Attachment 157207

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Originally Posted by Graeme

Attachment 157207

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Thanks Graeme.

So The battery saver relay is located inside the central junction box so it sounds like it can’t be changed.

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Originally Posted by SeanC

So The battery saver relay is located inside the central junction box so it sounds like it can’t be changed.

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Just did a google and yep, bugger. Whole unit needs replacing!