My 2014 E-Class petrol gets a Quantum stage 1 tune: 6 changes noticed

I think the effect is not that impressive due to slow 7 speed gearbox as well. Quantum offers TCU remap as well for faster shift times. I may go for it in coming days.

BHPian Mission_PGPX recently shared this with other enthusiasts.

Stage 1 Remapped my W212 E200 :

My 2014 facelift W212 with just 22,090 kms on ODO is now remapped. I chose quantum tuning for the map. Mr. Kunjan Patel, authorized and training guy from quantum operates from Ahmedabad only. So he offered to come home. So there are 3 ways to remap: OBD tuning, Bench Tuning and BOOT tuning. They don’t open the ECU for bench tuning. He chose Bench tuning, where ECU needs to be removed from car for a complete access to required files. Quantum Red map was written on ECU and car was remapped in approx. 1 hr.

First impressions:

1. The idle became further refined, it’s hard to tell if engine is on.
2. The low-end pull became more affirm, having no lag. However, its just 400 Nm torque so the effect is not as good as a diesel tune.
3. The major difference I felt today was on top end, during my drive on freshly opened Vadodara - Bharuch stretch of Expressway. Earlier the pull in D7 from 100 kmph was very lethargic, so had to downshift in D6 and now it pulls cleanly in D7, thanks to that additional torque. The same can be visualized in their dyno map as well.
4. When driven with light foot, the remap is hard to notice, unlike all VAG cars. As you can see from the graph, the gains are not too high below 2000 rpm, so if you stay above 2000 rpm then it feels much faster.
5. I think the effect is not that impressive due to slow 7 speed gearbox as well. Quantum offers TCU remap as well for faster shift times. I may go for it in coming days.
6. The service B is due in 30 days and I decided to remap before that. I think after replacing the air filter the gains could be bit more visible.

W212 Bosch ECU

Read BHPian comments for more insights and information.