Has anyone had their 4.2tdi D3 remapped?
 

Has anyone had their 4.2tdi D3 remapped?


I took mine in last Saturday to BTG Performance in Newcastle as they had a groupon for £199 for a remap. I thought great, took it in 12.30 and came back at 2.30pm the guy said shouldn't be too long 10 minutes later he tells me its already been remapped in the past and boost is already to where they would expect a map to be, so I ended up getting a refund even after persisiting they mapped it, they said they would t want me to be disapointed as they thought it would be arpund the same performance.

I dont know if they were just trying to get out of it due to having 2 ecus. The performance as it is seems right for what would be stock 0-60 in 5.9s so I'm doubting its been remapped tbh. I've had the D3 3.0tdi pre and post map so can compare them, do you think they may be trying to pull the wool over my eyes? I could get it dyno'd there which I'm considering, any experience would be helpful?

If you have VCDS, it tells you when the ECU was last flashed and how many times in total.

Cheers fella, I do have VCDS good news, any links on the procedure for checking the last flash?

But surely the VCDS flash could also just be telling you that the ecu has had an update flash rather than a remap? I had my leon cdtdi mapped and I was talking to the boy about it whilst he flashed it as he writes the maps himself, he told me that with diesels he barely touches boost if at all, he changes injection angle etc but could be different from this engine i dunno 🤷🏻*♂️

Engine>>>Advanced ID

Of course what Duff says is true and so you need to think has a 10 year old car had a factory update recently (unlikely when out of warranty) . Does it say it was never reflashed in which case it is probably not remapped or possibly the mapper was clever enough to hide the fact. Check both ECUs and paste the text here if you like.
Something like...

Attachment 21585

Cheers man, I'll check it out when I'm back from holiday, It feels how I would expect stock to be, I'll check the last flash and maybe do some logging, BTG really messed me about that day wasted a good 3hrs before they said they could t do it

The 4.2 Tdi is twin turbo, and loves a remap.

Post remap it should be chewing at the rear tyres to break loose coming out of junctions.

if it doesn't, its possibly not mapped, or not mapped well.

The twin ECU takes more effort, and maybe they can't do it, or just didn't want to do it at the reduced group on price. I dont know BTG so these are just my own musings.

Yeah I think your right either not mapped or poorly mapped, I'll get to the bottom of it and report back on here, I'm just going off my previous experience with a 2006 D3 3.0tdi pre and post map, my gut feeling is they realised they had to faff on with 2 ecus and told me anything, the performance is definitely stock to what would be manufacturers spec 0-60, I would have thought remapped would be low 5s 0-60, I want that chewing tyres feeling at the rears +++

Here's the last flash date looks to be 2years from new so I'm
doubting its remapped what you reckon:Confused:

Friday,17,May,2019,19:01:51:46565
VCDS Version: Release 18.2.1
Address 01: Engine
Control Module Part Number: 4E1 910 409 A
Component and/or Version: 4.2L V8TDI G000AGMª0070
Software Coding: 0011773
Work Shop Code: WSC 00641
VCID: 224A62A1FD7A145411-8076

Advanced Identification
Serial number: AUX3Z0E9377249
Identification: BPG-810
Revision: --H01---
Date: 12.10.05
Test stand number: 1883
Manufacturer number: 0045
Flash Status
Programming Attempts: 1
Successful Attempts: 1
Programming Status: 00000000
Required Conditions: 00000001
Flash Tool Code: 146001 210 00641
Flash Date: 09.04.08
Software

A 4.6.5
Misc.
Hardware number: 4E1 907 409
Immo Challenge: A6 87 5C DD
Car Info
Chassis Number: WAUZZZ4E66N014310
VCDS Info:
VCID: 224A62A1FD7A145411-8076
Labels: Redir Fail!
Readiness: No script available

I've took some MAF and torque logs via VCDS can anyone take a look and work out if it's been remapped?
Would really appreciate any help

peak torque logged from VDS was 799.9nm I know this is what the engine thinks is outputting but it appears to be high so I'm thinking it might be remapped what do you reckon?

Made some progress on trying to determine id my D3 4.2tdi has been remapped, 6
Did a VCDS Acceleration 0-60 test tonight, quite a good feature. From the results it looks pretty stock to me 0 to 60 mph: 6.2 +- 0.36swhich meant the company BTG I had took it to and said it had already been remapped must have been trying to get out of a cheap remap.

Question is does anyone know what a D3 4.2tdi 0-60 which has been remapped would be roughly?

Thursday,15,August,2019,19:09:34:46565
Control Module Part Number: 4E1 910 409 A Component and/or Version: 4.2L V8TDI G000AGMª0070

US Units
0 to 60 mph: 6.2 +- 0.36s

Finally had the car remapped at the Perfomance Centre in Sunderland on Saturday little bit down on power 298hp/630nm but they managed to get it up to 340hp/866nm. I was a bit disappointed in the peak hp figure but as they explained it doesn't matter with all that torque and the curves they achieved, just takes off now really happy with it.
Attached a graph for anyone interested

What did that set you back and what is the mpg like?+++

It was £324 bud, I was quite impressed with the perfomance centre, they did a diagnostic and a few rolling road tests before starting the tune to get a baseline. The place I went to a months back BTG in Newcastle didnt do any initial rolling road session and said it was already mapped sheet lies 😂. I'm going to check the mpg today as I'm normal around 32mpg on and 60/70mph trip to work 27 miles each way. Just enjoying the new found loud pedal nice and easy overtaking before it felt sluggish 50-70 now it just goes

sweet!+++

Hi Jonny.

Out of interest, if you do another 0-60 with same equipment and settings as before, would be great if you could post them up.

John.

I like your thinking John +++
I'll post one soon, stock at 298.7hp/630nm was 6.2 +-.3s
.3s accurate so gives a good indicator

Thursday,03,October,2019,17:51:18:46565
Control Module Part Number: 4E1 910 409 A Component and/or Version: 4.2L V8TDI G000AGMª0070

Metric units
0 to 100 km/h: 6.0 +- 0.34s
400m: 23.2 +- 0.34s, @31 km/h
90-120 km/h:
200 meters: 9.9 +- 0.36s, @88 km/h

US Units
0 to 60 mph: 5.6 +- 0.34s
1/4 mile: 23.5 +- 0.34s, @19 mph
60-90 mph:
660 feet: 9.9 +- 0.36s, @55 mph

5.6s 0-60 I'm happy with that, prior the remap it was 6.2s
I took it just over 60 on the same stretch of road 2 runs each way with traction on

Mpg has stayed the same at 32mpg on at 52 mile round trip each day, mixed roads with traffic but I'm happy with that as long as it's faster now :D

Found this thread as I am looking to remap my 4.2TDI. I did some baseline testing for acceleration with VCDS so that I have something to compare to after remap and mine seems rather slow 0-60 with 6.4 to 7.0s (manual says 5.9s 0-100km/h (62mph)). It's quite slow from the start until about 2.5-3k rpm an then it really picks up. I have tried starting with parking brake on, with foot brake on and pressing accelerator as I release brake or building up some revs with brake on, with ESP on and ESP off. ESP does not seem to make much difference but it's fastest starting with parking brake on. Off brake and on gas in the middle and slowest if building up revs before releasing brake. Funny thing is it's slow 0-60 compared to where it should be but 400m & 1/4 mile is pretty much as it should be 15.1-15.3s and always about the same regardless if 0-60 was 6.4 or 7s. Picture with expectations below, I know VCDS is not the most precise and mine is 2065kg not 1945 like in the pic plus I had almost full tank, 2 child seats in the back and 2 tyres in the boot. I am wondering if I should pull ABS fuse and kill ESP for good and see if it makes difference or maybe I need new brake pedal/brake light switch. Or I might need to buy Bluetooth GPS receiver for the phone for more precise reading on Amazon and then return when I am done with it as they are reading 10 times per second compared to 1 ime per second for phones internal GPS https://www.amazon.co.uk/Garmin-GLON...5912549&sr=8-2

http://forum.a8parts.co.uk/attachmen...1&d=1605911691

I did these tests when I first got mine using vcds 0-60 was 6.2s at 300hp, after remap at 340 0-60 was 5.6s, did 3 runs each test, all done with esp on. I think the stock figures were never real world figures looking on zeperf site reported real figures were around 6.3s.

Interesting reading chaps. Nice to see an actual improvement to confirm what you feel after a remap. I’ve toyed with mapping my 3.0, but don’t really think it’s worth it. I spoke with a remapper a while back and he said with DPFs the 3.0 doesn’t really improve so much...