In a muddle with your Mercedes?
The Mercedes A-Class packs in a lot of technology, and it can be hard to know everything about your car. So we’ve found the most frequent A-Class queries and answered them in an easy-to-understand way.
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How to open the bonnet on a Mercedes A-Class
This is a tricky one! The bonnet release is underneath the dashboard by the pedals – it’s the red lever in our picture. But it’s not easy to find – we had to lay down on the ground to find it! Mercedes must be confident that you’ll not need to use it often.
Once you pull the red lever, the bonnet will open a little. Slide your finger under the slightly open bonnet, release the catch and pull the bonnet up the whole way. The bonnet lifts on hydraulic struts, so it stays up automatically.
Where does coolant go in a Mercedes A-Class?
In the engine bay, the coolant tank is on the left-hand side as you look at it. It’s a translucent container with pink liquid inside, and there are minimum and maximum markings to make sure you put the correct amount in.
The car in our pictures is the plug-in hybrid A250e which, rather confusingly, has two coolant tanks – one for the petrol engine and one for the electrical system. You'll find the latter at the back of the engine bay.
Where to find tyre pressure on a Mercedes A-Class
You’ll find the tyre pressure information for your car inside the fuel filler cap. This will tell you the recommended pressures for the size of wheel you have, and if you should increase the pressure when fully laden.
How to reset tyre pressure on a Mercedes A-Class
The tyre pressure screen is buried within the driver’s display behind the steering wheel. Click the home button on the right-hand-side of the wheel, then use the black button to scroll through to ‘Service’. Click the black button to confirm, then scroll down to the Tyres submenu.
In this submenu, you’ll see the above message about tyre pressures being displayed after a few minutes of driving. Scroll down from here and you’ll get the other message with the OK button. Click this and your tyre pressures are reset.
How to turn on the passenger airbag in a Mercedes A-Class
The A-Class uses sensors in the seat to detect if someone is sitting there. If there’s enough weight on the seat – either a child seat or a human body – the passenger airbag will turn on automatically. There is no way to manually enable or disable the front passenger airbag.
How to turn on ambient lighting in a Mercedes A-Class
If ambient lighting is fitted in your A-Class, you can adjust it by choosing the Comfort menu from the home screen. Ambient lighting is generally only fitted in high-spec trim levels, such as AMG Line Premium.
How to turn on fog lights in a Mercedes A-Class
Locate the headlight panel – it’s by your right knee if you’re sitting in the driver’s seat. To the right of the headlight control dial, you’ll find the button to turn on the fog lights. In this picture, there’s only a button for the rear fog lights – the current A-Class doesn’t have front fogs.
How to change display on Mercedes A-Class
Click the home button on the right-hand side of the steering wheel, then use the black button to scroll across to Styles. This will give you a few design options.
To change the information displayed, scroll to the appropriate menu to adjust the settings to your preferences.
How to turn on rear windscreen wipers in a Mercedes A-Class
On the indicator stalk, there’s a rocker switch facing you, and this controls the rear windscreen wipers. Press the right-hand side to turn the wiper on, or press the left-hand side to wash the rear windscreen.
Where is the handbrake on a Mercedes A-Class?
The handbrake in a Mercedes A-Class is to the left of the headlight controls. Engage it when you come to a stop, then when you pull away it disengages automatically.
How to change the battery in a Mercedes A-Class key
Press the small button on the back of the key fob and slide off the black casing. The battery access is located inside the key fob; pull it out to get to the battery. Replace with a fresh CR2032 battery, making sure you insert it the right way up. Put the battery tray back in its holder and clip the black casing back on.
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