I have read a few postings mentioning remaps, and I am considering having the car remapped, (mainly for smoother running and increased efficiency), once it has been run in

a few questions:

Do Yeti's have the new "tamper proof" ECU units - i.e. it can been seen physically if the ECU has been "opened" - (I ask this because the remap company that I spoke to mentioned that it would take longer if the ECU was "tamper proof")

If the vehicle has been "remapped" will this be obvious to the dealer when he "plugs" the vehicle into the diagnostic machine when it is serviced/checked for updates, and would a "factory reset" if needed eliminate the remap

Any comments from guys who have had a remap on the VW/Audi/Skoda 2.0 TDi CR engine would be appreciated

(I know that it is advisable to inform the insurance company)

Cheers

Yes and yes the dealer can tell it has been remapped.

Speak to Ben at Shark Performance.

I don't fancy having the ECU removed and messed around with - maybe the ECU can be "flash" remapped - ala Bluefin from Superchips

My SAAB 9 5 was remapped by the SAAB dealer from new - a Hirsch remap

Every time I have the car serviced I remind them that it had been remapped as I wanted to ensure that the electronic diagnostic procedure did not "reverse" anything

I am sure that he told me that it was NOT obvious from the normal diagnostics run when they did the annual service or updates that the engine had been remapped

Maybe VW/Audi is different

Thanks

Edited 24 March, 201115 yr by BillN_33

Your ECU cannot be remapped over the OBD port. It can be detected by a dealer, it can also be overwritten by a dealer.

Nothing to see here - see Ben's post above!

, it can also be overwritten by a dealer.

Thanks

That's a big worry - knowing the typical dealer workshop of today - not worth having it done if you take your car to a dealer to be serviced as "generally" they take little care and would probably overwrite any remap "by accident" through just following a VW procedure specified during the annual service.

Maybe the safe answer is to ask Skoda if they can do the remap - do they have a related "remapping" company as SAAB (did) with Hirsch?

Hirsch was "recognised" by SAAB and the remap did not affect the 3 year warranty in any way

Any remap to the VW engine would presumably invalidate the 2 or 3 year warranty and also the 7 year breakdown cover if problems occurred that "could be" attributed to an engine modification, (which a remap would be classed as) - in theory almost any "problem" could be said to be attributable to an "engine" modification

Edited 24 March, 201115 yr by BillN_33

Why not give the tune-it chip a thought like mine variable power & economy changes depending on how you want to drive it plus the ability to remove it before service and reinstall it afterwards , I have had one of these on my golf tdi gt140 for 5 years and now have the same on my 2.0 tdi yeti fuel economy improves a bit and performance really increases I complimented mine with a K&N panel filter to boost airflow and it has now covered 24000 miles with happily.

Easy to install takes about 10 mins in all.tdi

Peter

Why not give the tune-it chip a thought like mine variable power & economy changes depending on how you want to drive it plus the ability to remove it before service and reinstall it afterwards , I have had one of these on my golf tdi gt140 for 5 years and now have the same on my 2.0 tdi yeti fuel economy improves a bit and performance really increases I complimented mine with a K&N panel filter to boost airflow and it has now covered 24000 miles with happily.

Easy to install takes about 10 mins in all.tdi

Peter

Which make of chip do you use,have you a link?

Thanks

That's a big worry - knowing the typical dealer workshop of today - not worth having it done if you take your car to a dealer to be serviced as "generally" they take little care and would probably overwrite any remap "by accident" through just following a VW procedure specified during the annual service.

Maybe the safe answer is to ask Skoda if they can do the remap - do they have a related "remapping" company as SAAB (did) with Hirsch?

Hirsch was "recognised" by SAAB and the remap did not affect the 3 year warranty in any way

Any remap to the VW engine would presumably invalidate the 2 or 3 year warranty and also the 7 year breakdown cover if problems occurred that "could be" attributed to an engine modification, (which a remap would be classed as) - in theory almost any "problem" could be said to be attributable to an "engine" modification

There is no officially recognised provider no. Most good remapping companies won't charge you to have the remap re-done if it is overwritten by a dealer update (we don't charge).

Thanks for your advice and suggestions - I am not really after "more speed"

I have the 140 and am happy with the performance - if possible I would like a smoother engine response, (the VW engine is somewhat agricultural, particularly in first and second), and a little more torque in the higher gears, (the car has a six speed gearbox and 5th and 6th would be more "useful" if the engine was smoother and had more torque).

Anything that improves the mpg these days is worth considering, particularly if the performance does not suffer with such an improvement.

I have seen those "tuning boxes" for diesel engines that are effectively plugged "in line" between the ECU and the "whatever" - plus also read mixed reports and one maker does not "stand out" as being the "most recomended"

Cheers

Edited 25 March, 201115 yr by BillN_33

There is no officially recognised provider no. Most good remapping companies won't charge you to have the remap re-done if it is overwritten by a dealer update (we don't charge).

Ben, once you have remapped a car with the newer 'tamper-proof' ECU's, if the dealer did then flash the ECU back to std then could the remap be re-installed via an STS unit, or would you need to physically open it up again.

Thinking out loud here, but if the dealer can flash the ECU via the OBD port then surely there must be a way of installing a map that way??

Ben, once you have remapped a car with the newer 'tamper-proof' ECU's, if the dealer did then flash the ECU back to std then could the remap be re-installed via an STS unit, or would you need to physically open it up again.

Thinking out loud here, but if the dealer can flash the ECU via the OBD port then surely there must be a way of installing a map that way??

Not as far as I'm aware. I had mine updated by Ben and he had to do the same again....Only Skoda/VW can do it via the OBD as they are the only ones with the codes to do so....

Ben, once you have remapped a car with the newer 'tamper-proof' ECU's, if the dealer did then flash the ECU back to std then could the remap be re-installed via an STS unit, or would you need to physically open it up again.

Thinking out loud here, but if the dealer can flash the ECU via the OBD port then surely there must be a way of installing a map that way??

The dealer can flash them because they have the required security certificates, if we had those then we would also be able to flash over OBD without removing the ECU

Cheers Ben, would this be something that could be reverse engineered etc to obtain the security certificates or is it just not worth spending the time on?

It's being worked on at the moment by all tool manufacturers. It'll happen eventually, it's just a repeat of what happened with EDC16 when that first came out.

I would like to get my 110 CR remapped to deal with the awful response in 4th or top between 50 and 70mph which catches me out on motorway overtakes occasionally.

I would like to get my 110 CR remapped to deal with the awful response in 4th or top between 50 and 70mph which catches me out on motorway overtakes occasionally.

 

It will map to around 175bhp as the 110 is effectively the same as the 140 engine.

That'll make quite a difference!

Do you let insurers know of these remappings? I have just renewed mine and I noticed there was a box asking if any modifications to the original manufacturers specification has been included

You'd be daft not to.

It usually adds very little to the premium.

Do you let insurers know of these remappings? I have just renewed mine and I noticed there was a box asking if any modifications to the original manufacturers specification has been included

 

You should, yes.  They would see it as a material factor in their analysis of risk.  Should you need to claim and it was discovered you had an undeclared modification you may find yourself facing the prospect of reimbursing them for any third party liability they might encounter.  Third party liability is the big one - could be tens of thousands or more.  Or you may not ever claim but it might come to light that you have an undeclared modification.  They might then cancel your policy.  Good luck with getting insurance when you have to answer the question "have you ever had a policy cancelled?" with "yes".