mega macs 77- car diagnostics machine

The fastest ever diagnostics from Hella Gutmann.

Bringing workshops into the fast lane

With its real-time repair concept, Hella Gutmann has taken a quantum leap into guided repair support. For the first time, the professionals in the workshop have been able to benefit from fault code-based and symptom-based repair aids that include images and written instructions. All fault codes including parameters can be transferred directly from the Car History to the experts in the Hella Gutmann Technical Call Centre at the touch of a button. From there, the workshop is given personal assistance until even the most complicated repair case is successfully resolved.


Now we've turbocharged our real-time repair concept and taken the new mega macs 77 up a few gears. For the workshop, this means the fastest and most complete diagnostic and repair support ever provided by Hella Gutmann Solutions.

The full-throttle functions of the new mega macs 77:

✓ Extra-large 15.6" full HD touchscreen
✓ Real-time repair concept
✓ Precise measuring technology with step-by-step instructions and automatic target/actual value comparison
✓ Read and delete fault codes in all control units
✓ Display of up to 16 vehicle parameters in one view
✓ Fault code-based, vehicle-specific repair aids in real time
✓ Encoding, basic settings, and service resets
✓ And much more

Those who have a full overview of everything gain a better insight with the extra-large 15.6" full HD touchscreen

Regardless of whether you are displaying all 16 of the vehicle parameters on the screen at once, making basic settings, displaying service data, or following the step-by-step instructions for systematic troubleshooting – thanks to the super fast processor, mega macs 77 does everything at lightning speed with a razor-sharp screen resolution. So the mechanic has an overview of everything at all times and can work with maximum efficiency.

mega macs 77 takes on a leading role – guided measurements with guaranteed success

The new mega macs 77 makes short work of current, voltage, and resistance measurements and stands out due to its entirely new level of quality in guided measurement technology. It directly links to the component test values and automatically makes all the settings for the oscilloscope and multimeter. Setpoint values are directly displayed on the tester, as well as a graphic representation of setpoint signals. It can be determined in real time whether the measured values are correct (green) or have not met the setpoint (red).

Thanks to the detailed instructions and notes, even diagnostics beginners can achieve professional and usable measurement results. This allows measurements to be performed on complex electronic systems and the results to be evaluated. For the workshop, this means locating faults faster, resolving them faster, and earning money faster.

No more speed restrictions – first-rate real-time repair concept

Thanks to the high-performance processor and guided measurement technology, mega macs 77 now delivers faster and more comprehensive fault code-based, vehicle-specific repair aids for more than 49,000 vehicle models from all relevant brands. These aids include both images and written instructions. But if anything goes wrong, the entire repair history can be sent to the experts in the Hella Gutmann Technical Call Centre at the push of a button and at lightning speed. Here specialists will personally ensure that even the most complex repair case is resolved in no time.

MEGA MACS 77 technical data
Supply voltage 15 V
Max. current consumption 5 A
Operating temperature range 0°C to +45°C
Storage temperature range -10°C to +60°C
Weight 3,800 g (incl. battery, incl. 2 empty modules)
Dimensions 131 mm x 421 mm x 314 mm (H x W x D)
Display 15.6" widescreen, 1920 pixel x 1080 pixel (full HD), LED backlight
Input Capacitive touchscreen
Processor Snapdragon 600 E® Qualcomm® Krait™ 300 quad-core CPU, 1.7 GHz
Operating system Linux 32 bit
Memory 2 GB LPDDR2, 533 MHz
Data memory 32 GB eMMC
Interfaces 2 x USB 2.0 host port (type A); 1 x USB 2.0 device port (type B); 1 x docking port (for docking station); 1 x voltage supply socket
Wireless interfaces

WLAN; IEEE 802.11 a/b/g/n/ac;

Bluetooth; version 4.2 Class 1
Add-ons 2 x module plug-in
  Input: 100 – 240 V AC, 1.5 A, 50 Hz / 60 Hz
Output: 15 V DC, 6.67 A
Average battery life 4 h (operation without module plug-in)
Resolution 14 bit
Sampling rate 65 MSample/s
Bandwidth 10 MHz
Memory capacity 2 Mbytes per channel (1 MSample)
Measuring inputs 2 electrically isolated differential inputs
Maximum voltage +/-200 V
Measurable variables

Voltage to channel 1 and 2

Resistance to channel 1

Current via the measuring adapter

Pressure via the measuring adapter
Time base 2 s/div – 40 s/div (5 divisions)
Link types AC and DC
Trigger settings

Selectable channel



Auto level/manual level


Measurable signal characteristics


Period duration

Pulse width

Duty cycle

Minimum value

Maximum value

Maximum peak-peak value
Measuring ranges

Voltage: 0.1, 0.5, 1, 2, 5, 10, 20, 30, 100, 200

Volts (current): 1, 2, 5, 10, 20, 50, 100, 200, 500, 700

Ohm (pressure): -1 to 60 bar

Always there for you.


Your team of advisers:


+49 7668 9900-886