Entering the car details

[Henry_Au]

When I try to Overlay I get a message to configure both engine and powertrain settings to achieve an accurate rpm/gear diplay.

What information do I need to enter?

I am trying to enter the gear information from Merc but each I enter one gear the other get changed.. What am I doing wrong?

I got these info from Merc:

Engine
Number of cylinders/arrangement 4/in-line, 4 valves per cylinder
Displacement cc 1991
Bore x stroke mm 83.0 x 92.0
Rated output kW/hp 265/360 at 6000 rpm
Rated torque Nm 450 at 2250-5000 rpm
Compression ratio 8.6 : 1
Mixture formation Microprocessor-controlled direct petrol injection with piezo injectors, turbocharging
Power transmission
Drive All-wheel drive
Transmission AMG SPEEDSHIFT DCT 7-speed sports transmission
Gear ratios Axle drive 1 4.13 (gears 1, 2, 4, 5 and R)
Axle drive 2 2.39 (gears 3, 6, 7)
1st gear3.86
2nd gear2.43
3rd gear2.67
4th gear1.05
5th gear0.78
6th gear1.05
7th gear0.84
Reverse 3.38

Chassis and suspension
Front axle McPherson axle, coil springs, gas-pressure shock absorbers, anti-roll bar
Rear axle Four-link suspension, coil springs, gas-pressure shock absorbers, anti-roll bar
Braking system Disc brakes, vented and cross-drilled all round, electric parking brake at the rear, ABS, Brake Assist, 3-stage ESP®
Steering Electromechanical rack-and-pinion power steering
Wheels 8.0 J x 18
Tyres 235/40 ZR 18
Dimensions and weights
Wheelbase mm 2699
Track, front/rear mm 1557/1561
Overall length mm 4691
Overall width mm 1777
Overall height mm 1416
Turning circle m 11.0
Boot capacity* l 470
Kerb weight according to EC** kg 1585
Payload (at kerb weight acc. to EC) kg 490
Gross vehicle weight kg 2075
Tank capacity/incl. reserve of l 56/8
Performance and fuel consumption
Acceleration 0-100 km/h sec. 4.6
Top speed km/h 250***
Fuel consumption, NEDC combined l/100 km 7.1-6.9
CO2 emissions g/km 165-161
Efficiency class C-D
*Acc. to VDA measuring method; **incl. 75 kg for driver and luggage; ***electronically limited

[Harry]

I have added a new how-to. I hope it will answer all questions around gear calculation.

viewtopic.php?f=39&t=3425&p=17389#p17389

- Harry

[Henry_Au]

Thanks Harry!! Working now..