No it shouldn’t. All codes and diagnostics that a main dealer might read when a vehicle is in for a service or diagnostics will remain exactly the same. We say it with confidence because of the rigorous testing regime all our remap files go through. In addition to this, EU Block Exemption Regulations it is illegal for a vehicle manufacturer to void your warranty because work has been carried out by a third party. This also covers vehicle tuning and engine remapping as long as the failure is not as a direct cause of the modification. We can say with confidence that no JFA tuning remap has ever caused a single failure and we are recognised as supplying some of the best tuning files in the world. To back this, we offer our customers 100% peace of mind knowing that our tuning files are fully insured for up to £2 million by Aviva.
NOTE: As of 2013, the VW Group online dealer tools have the ability to see software on any modified vehicle. When a modified vehicle is plugged in online it is flagged on the system, this flag is called TD1 please read the below overview:
TD1is the VW Audi Group warranty ‘Flag’ for a vehicle that has been modified, this is something you should all be well aware of. If you’re not then please note; since the change in main dealer on-line diagnostic tools throughout 2013 performance software can and will be seen when a vehicle is plugged into online at a main dealer. This is the case even if it’s switched to ‘stock’ mode, it is possible although not confirmed that TD1 could be flagged if a vehicle has been flashed with any tool other than the OEM online system. Our recommendation to make the vehicle owner aware that their warranty will be affected if they have software installed on their vehicle; this isn’t anything new as we’ve never claimed software is undetectable.
Once an ECU/Vehicle is tuned some dealer diagnostics tools can detect it’s been modified. You may loose your manufactures warranty by having your ECU/Vehicle tuned. We are not liable for loss of warranty or repair as the owner of the vehicle wishes to have their ECU/Vehicle modified.