Is there a way to leave auxiliary power on after car is locked up?

[seancroudace]

I could in the Chrysler for a set time up to 30mins - I work in highways and on occasion have to leave the car roadside with lights and a beacon on. When I take keys out and lock the CLS ALL electrics are off so unlit unless I use the hazards which not ideal

 

[whitenemesis]

You should be able to leave parking lights on? Might only be one side though, IIRC leave the indicator on when locking up. There's also a welcome home setting that leaves the headlights on but that's only for tens of seconds though.
Leaving anything on will potentially kill the battery? Not sure how the Chrysler managed 30mins!

 

[SpikyMikey]

I might be tempted to invest in a couple of battery powered rechargeable beacons...safer than risking a flat battery.

 

[seancroudace]

Beacon is LED and was only sidelights so the rear was illuminated - never flattened battery doing that - perhaps wasn’t the full 30mins but the option was there.

The get you home lighting isn’t adjustable on these is it?

 

[markjay]

Do you have Keyless Go? I think that if you press the 'engine start' button without depressing the brake pedal, the car will be in the same state as the 'accessories' position on the old physical key. I.e., the engine won't start, but everything else will be powered up. This works on my other car (not MB). My MB had a physical key so I didn't get a chance to try it on an MB.

 

[Petrol Pete]

Bit confused of your requirements .

If you are working/contracting for highways England just parking a car in a TM/TTM closure requires a bit more than parking lights left on , and excerpt from Section 8 regulations 2006...

The new Chapter 8 now says:

Without prejudice to the specific requirements of the following sections, any vehicle stopping on the highway for works purposes or inspections shall be equipped with either a roof-mounted amber warning light bar (comprising at least two independent light sources) or two independent roof-mounted amber warning beacons, visible through 360°.

O5.3.2 Warning beacons must comply with the requirements of the Road Vehicle Lighting Regulations and should also comply with the United Nations Economic Commission for Europe (UNECE) Regulation 65 on
Special Warning Lamps.

O5.3.3 If the main beacon is likely to be obscured from the rear by parts of the vehicle or any equipment
carried on the vehicle, additional beacons should be fitted toward the rear of the vehicle where they will remain visible.

O5.3.4 The beacons shall be in use when entering, leaving or moving within the site, when travelling in traffic at less than the general traffic speed, and when stationary on the hard shoulder.

O5.3.5 When stationary within the confines of a fully installed traffic management arrangement, the beacons shall be switched off, unless they form part of the guarding of the works, e.g. works on minor roads, or are required for mobile works; see Sections O10 and O11.

I am not in this trade but one of my mates owns a very big TM company and I have a number of friends who work on 'the motorways' and even the few who do not use vans have the regulatory yellow reflective stripes on their saloon cars 'motorway maintenance' and chevrons stickers on the rear.

Otherwise they are not allowed to enter the closure. Your circumstance might be different , must admit before I met these blokes I always wondered why I would spot boggo passenger cars with all this stuff stuck all over them .

 

[seancroudace]

Slightly different it’s our road and I’m in charge!! On the Chrysler I could leave the car and the beacon would stay on for 10/20/30mins depending on how I had it set up for auxiliary power - seems this one doesn’t have that facility key out power all off - if I swap the lights to non auto I can leave sidelights and hazards on so that will have to do

 

[seancroudace]

Do you have Keyless Go? I think that if you press the 'engine start' button without depressing the brake pedal, the car will be in the same state as the 'accessories' position on the old physical key. I.e., the engine won't start, but everything else will be powered up. This works on my other car (not MB). My MB had a physical key so I didn't get a chance to try it on an MB.

No it’s not got many options on this one - was a hertz hire car originally so quite a basic spec

 

[ToeKnee]

My Mondeo has the option to change how long the cigarette lighter is powered after key removal, it's set to 30 mins, as standard, which I thought was silly and changed mine to instantaneous off, it's only since reading this thread I realised why it might be a useful setting.

 

[SpikyMikey]

On our Leon, the fag igniter fuse has 2 selectable positions; either off with the ignition or permanently on.

 

[seancroudace]

Mmm - might have to do some swapping about - I used the back seat aux socket could it be different in other sockets? I have one up front and one in the boot - I’ll play about with it next time. Thanks for that

 

[Chrishazle]

Sounds like your CLS is the same as my S204 - ignition off, all 12V outlets off. Bloody annoying, found out soon after I got the car, went away for a weekend and thought I'd charge wife's phone overnight in the boot, only to find the socket dead. I think it's only the UHI connector in the centre arm rest that stays live, but can't connect anything useful to it!