What is the AUX of Mercedes-Benz GLA?

Both the GLA 200 and GLA 250 have different powertrains ：

Powering the GLA 200 is a 1.3-litre turbocharged 4-cylinder engine which is built by Renault. This engine makes 163 PS and 250 Nm, and is mated to a 7-speed dual-clutch automatic transmission. Mercedes-Benz claims a 0-100 km/h time of 8.7 seconds.  

The GLA 250 is powered by a 2.0-litre turbocharged 4-cylinder engine (224 PS/350 Nm) that is mated to an 8-speed dual-clutch automatic transmission. This gives the GLA 250 a century sprint in only 6.9 seconds.  

2021 GLA-Class with 4,410 mm in length, 2,020mm in width,1,611mm in height.

Some features available as standard across the GLA range include:

• LED High Performance headlamps
• 4-way lumbar support
• Automatic climate control
• Automatic wipers
• Easy-Pack automatic tailgate
• The latest generation of Mercedes me connect
• MBUX infotainment with Apple CarPlay and Android Auto support

As for safety equipment, both variants of the GLA are equipped with the following:

• 7 airbags
• Active brake assist
• Active parking assist
• Cruise control
• Pre-Safe system
• Tyre pressure monitoring system

The 2021 Mercedes-Benz GLA-Class comes in two variants: 

GLA 200 Progressive Line: RM 244,200

GLA 250 AMG Line: RM 285,337

No, Mercedes-Benz GLA isn't available in Sound Plus Functions.

Here are the Front/Rear Side Airbags and variants of Mercedes-Benz GLA:

Yes, Mercedes-Benz GLA is available in Euro NCAP Rating. The available Euro NCAP Rating variants are: 2018 Mercedes-Benz GLA GLA 200 Urban Line, 2018 Mercedes-Benz GLA GLA 250 4MATIC AMG Line, 2019 Mercedes-Benz GLA 200 Style.

Yes, Mercedes-Benz GLA is available in Sunshade. The available Sunshade variants are: 2019 Mercedes-Benz GLA 200 Style, 2020 Mercedes-Benz GLA 200 Night Edition.

Yes, Mercedes-Benz GLA is available in Child Safety Lock. The available Child Safety Lock variants are: 2018 Mercedes-Benz GLA GLA 200 Urban Line, 2018 Mercedes-Benz GLA GLA 250 4MATIC AMG Line, 2019 Mercedes-Benz GLA 200 Style, 2020 Mercedes-Benz GLA 200 Night Edition.

No, Mercedes-Benz GLA isn't available in Rear Air-con.

Yes, Mercedes-Benz GLA has Front Air-con, which are: 2018 Mercedes-Benz GLA GLA 200 Urban Line, 2018 Mercedes-Benz GLA GLA 250 4MATIC AMG Line, 2019 Mercedes-Benz GLA 200 Style.