Disco 2 TC vs CDL

So, since I found an easy way to use the CDL on my TD5 I was wondering when should one prefer using the CDL instead of the TC and vice versa.

For example I found that the TC in mud is not very helpful since by applying brakes in one of the front wheels it makes the vehicle turn unexpectedly (makes the car uncontrollable in a degree when moving on muddy terrain)

What do others think on this matter?

It's simple , if you have CDL always lock it before you go off road, that's all

sierrafery said:

It's simple , if you have CDL always lock it before you go off road, that's all

Click to expand...

If I do lock it while the engine is running then the TC will also be active. If I lock it before turning the engine on then the TC will be deactivated.

I remember you saying that the first scenario is not optimum.

I my case I can have 3 different options;
Only TC
Only CDL
TC and CDL

If you have the early type SLABS ECU then the best is diff locked before ignition as to bring on the two amigos, with the uprated ECU TC and CDL are working well together

Michalis Karatzis said:

If I do lock it while the engine is running then the TC will also be active. If I lock it before turning the engine on then the TC will be deactivated.

I remember you saying that the first scenario is not optimum.

I my case I can have 3 different options;
Only TC
Only CDL
TC and CDL

Click to expand...

If you have 1 front & 1 rear spinning even with CDL in you are stuck without TC.
TC was LR way of trying to intergrate ABS to do something else so they didn’t have to fit LSD or other locking diffs.

IMHO

J

sierrafery said:

If you have the early type SLABS ECU then the best is diff locked before ignition as to bring on the two amigos, with the uprated ECU TC and CDL are working well together

Click to expand...

I do have the early SLABS ECU so I will take your advice and lock the CD before ignition

marjon said:

If you have 1 front & 1 rear spinning even with CDL in you are stuck without TC.
TC was LR way of trying to intergrate ABS to do something else so they didn’t have to fit LSD or other locking diffs.

IMHO

J

Click to expand...

Yes, I understand that and it works in most cases. The thing is that in muddy conditions when the TC kicks in and locks one of the front wheels the vehicle then suddenly swerves to the left or right. At least this is what I have experienced in a couple of cases.

Michalis Karatzis said:

I do have the early SLABS ECU so I will take your advice and lock the CD before ignition

Click to expand...

That'sthe best and eventually if you get stuck this way try the other options too but only untill you get out then go back to CDL

Michalis Karatzis said:

If I do lock it while the engine is running then the TC will also be active. If I lock it before turning the engine on then the TC will be deactivated.

I remember you saying that the first scenario is not optimum.

I my case I can have 3 different options;
Only TC
Only CDL
TC and CDL

Click to expand...

3rd option or axle locker

Michalis Karatzis said:

Yes, I understand that and it works in most cases. The thing is that in muddy conditions when the TC kicks in and locks one of the front wheels the vehicle then suddenly swerves to the left or right. At least this is what I have experienced in a couple of cases.

Click to expand...

And that is with CDL in?

J

marjon said:

And that is with CDL in?

J

Click to expand...

No, only with the TC. Haven't tried CDL or CDL & TC in mud yet

I wish I had CDL so I could have this dilemma.

Michalis Karatzis said:

No, only with the TC. Haven't tried CDL or CDL & TC in mud yet

Click to expand...

Ok.
With only TC 1 wheel spinning and your stuck. Apparently it can be rough when it kicks in as you have to give it a bit of welly.
Give it the best chance if you know it’s going to get rough use the CDL + TC.

Think others have said same ^^^^

J

Here's the whole story, take some popcorn https://www.landyzone.co.uk/land-ro...-and-tc-control-question.333003/#post-4308293

sierrafery said:

It's simple , if you have CDL always lock it before you go off road, that's all

Click to expand...

Very true and Signature worthy.

It seems I will be spending some £ on a SRD500070 at some point in the next few weeks

The 000150 will work too

And the SRD000150 is cheaper and easier to find (on eBay) than the SRD500070.

Actually the 500070 is an upgraded 000150 but not huge difference, it's better ''balanced'' with TC operation and has an improved diagnostic protocol

Yep. More recent firmware upgrade on the SRD500070 (I’ve seen as recent as 2013) but it’s costly due to the demand and rarity plus it was manufactured in Poland.
These are mine...