Moving from a W211 E55K to a W212 E63 Biturbo

[AMGeed]

Not so much missing, as never fitted Rog. ISTR the small ///AMG badge in the grill didn’t appear until some time during 2015 production.

Oh, Roger you've fitted an AMG badge that shouldn't be there Mmmm let you off though.

Oh no! I'll never live this down. Inappropriate badging

 

[Alps]

Has anyone connected the Ctek battery charger fly lead to the positive and negative posts in the engine bay?
Not sure how either will bolt on easily. I want a permanent easy connection to save messing with crocodile clups on the battery terminals should the battery need a boost in the winter.
Have I got to connect the lead directly to the battery ?

Here's what I have.

View attachment 89167 View attachment 89168 View attachment 89169 View attachment 89170

you wont need it Roger, My E55 used to drain if i left it for two weeks, but the 63 had been left over a month and started first time..... i doubt you will need the ctek

 

[Atavus]

For an AGM battery I wouldn’t recommend a direct connection. Your manual should cover it.

I’ve charged with crocodile clips on the provided posts. It’s a shame there’s no socket on mine. I expect you could drill and fit a comfort connector.

 

[AMGeed]

For an AGM battery I wouldn’t recommend a direct connection. Your manual should cover it.

I’ve charged with crocodile clips on the provided posts. It’s a shame there’s no socket on mine. I expect you could drill and fit a comfort connector.

So drilling the connector posts inside the engine compartment as shown in photos is the way to proceed and avoid a direct connection to the battery?

I'll also RTFM

 

[Atavus]

Yes, I think so.

 

[E55BOF]

What size are the threaded posts to which the actual metal plates are bolted? Ctek do 10mm connectors; like this:

https://www.amazon.co.uk/dp/B002X67JYE/?tag=amazon0e9db-21

 

[tonysmb]

Mines not a CTEK but I've used a similar trickle charger for 6+ years now, connected up to the 2 posts as shown in your first picture. Mine uses crocodile clips but seems to work okay as I can see it charging then maintaining. Car regularly parked up for ages (trouble with having too many cars) and seems fine to me.

Nice car by the way - I quite like the 5.5 bi-turbo

 

[AMGeed]

What size are the threaded posts to which the actual metal plates are bolted? Ctek do 10mm connectors; like this:

https://www.amazon.co.uk/dp/B002X67JYE/?tag=amazon0e9db-21

That is the lead I have and want to use to make a permanent connection should the battery need a boost.
Thanks to Alps, looks like the 63 may not need it, but I'd like it just in case.