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Discussion Starter · #3 ·
Yes Andy, the stealer quoted me abt £140 (plus £80 to fit it), but that would not be AGM, which according to my research, would be a better option for mainly a short journey car, with lots of power hungry extras, like the Smarttop and heated seats etc, etc. I can find a flooded battery, similar in spec to the OE for £55, but feel like moving along with the technology at this stage.
 

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Discussion Starter · #7 ·

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2017 SLC43
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Outrageous price to fit a battery - how MB can justify that is beyond me :td:
Labour rates vary but if you work on 30 minutes to fit the battery on a labour rate of £130+VAT then it's £80 to fit the battery. Hardly outrageous in today's world. The labour rate at my local MB dealer is £150/hour so you could even call it reasonable.
 

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Labour rates vary but if you work on 30 minutes to fit the battery on a labour rate of £130+VAT then it's £80 to fit the battery. Hardly outrageous in today's world. The labour rate at my local MB dealer is £150/hour so you could even call it reasonable.

It takes me 5 mins to change a battery :surprise: 0:)Wish I had a business that could charge £150/£160 an hour - maybe until I do I'll always maintain that that sort of money is outrageous in todays world :wink:
 

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It takes me 5 mins to change a battery :surprise: 0:)Wish I had a business that could charge £150/£160 an hour - maybe until I do I'll always maintain that that sort of money is outrageous in todays world :wink:
I love people who say it takes them 5 minutes to do anything. It usually takes them 5 minutes just to locate the required 13mm ring spanner.

The truth is it takes 5 minutes just to find your car in the car park and drive it into the workshop. And 10 minutes to wash and valet it. And it probably does take 30 minutes to do it following the Mercedes procedure where they put the covers on the wings and hook up the other battery in parallel so your car doesn't lose it's settings. Then check that it's taking charge as it should.

I don't work for free, and I don't begrudge paying someone to do something I can't do. I can charge what I charge because most people can't do what I do. I am incredibly fortunate that I lease my cars fully serviced so I don't have to worry about hourly rates or spare parts prices, but if you want to run the nice cars, you have to be prepared to pay the nice car money.
 

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I really want an AGM, not flooded battery. They are standard, I believe, on cars with stop/start feature, due to their superior power delivery and 'cycling' ability. Looks like I'm not going to do better than £89.99 delivered...

Absorbent Glass Mat (AGM) Battery Information - Battery University
Oops didn't notice AGM in the title. I've had Westco AGM batteries in my 1100 Virago and my old mk1 mx5, neither lasted very long unfortunately, I replaced with flooded batteries.
Good luck in your search.
Mark
 

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Discussion Starter · #15 ·
Oops didn't notice AGM in the title. I've had Westco AGM batteries in my 1100 Virago and my old mk1 mx5, neither lasted very long unfortunately, I replaced with flooded batteries.
Good luck in your search.
Mark
I'm starting to have second thoughts now having read about the ease of overcharging AGMs and intolerance of heat. Maybe a flooded, and save £35 into the bargain!
 

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Hi All


Is the AGM made for the newer cars with stop start eco fitted ,So they are always starting the car at every stop light , If fitted to a non stop start then you will over charge as you let only start the car once every trip . Or have I got it wrong again .




Cheers


Andy
 

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Well it took me 15 mins to change my genuine heavy duty battery on my slk 171.

13 minutes cleaning battery tray 2 minutes to fit .
There a simple fit .

And ive fitted hundreds .

£80.00 for a 5 min job well

Yes you can stretch it out 20 minutes max with a coffee break .

But if you take it to mercedes you got the money to tip then on there shiny floor.

:grin:
 

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Discussion Starter · #18 ·
Hi All


Is the AGM made for the newer cars with stop start eco fitted ,So they are always starting the car at every stop light , If fitted to a non stop start then you will over charge as you let only start the car once every trip . Or have I got it wrong again .




Cheers


Andy
One of the reasons they are fitted to 'stop/start' cars is that they take and deliver a charge very quickly, due to the nature of construction and low internal resistance. A trade-off from this is their sensitivity to heat and overcharging. My concern is that voltage regulators set at say 14.4v, optimal for flooded batteries, may be too high on a long run for an AGM - which would possibly explain the comparatively high failure rates when fitted in non-standard applications. But I'm not 100% sure about this and none of the 'battery specialists' I've spoken with seem to know any better...:rolleyes:
 

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Discussion Starter · #19 ·
So far this morning, two suppliers suggested an AGM, and one (who appeared quite professional) said not recommended at all for fitments within in engine bay...
 
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