2017 Audi A6 Battery Size

GarageDex's verified fitment data shows the 2017 Audi A6 was built with a BCI Group 48, 49, 94R or 95R battery depending on its factory battery option, rated about 640-950 cold cranking amps across those options. Match the group printed on the battery you are removing.

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Key takeaways

Battery: BCI Group 48, 49, 94R, 95R depending on the factory option, 640-950 CCA.
Match the group printed on the battery you are removing - these options use different case sizes.
In cold weather, choose a battery at or above the CCA printed on your current battery.
The battery type also varies by option - replace an AGM or EFB battery with the same type.

BCI Group Size48or Group 49, 94R, 95R, by factory optionThe case-size code that sets the physical fit and terminal layout.Verified fit

Battery type (OEM): Varies by factory option
Cold cranking amps (CCA): 640-950
Terminal position: Standard-terminal layout
Dimensions (L×W×H): 278×175×190 mm

Audi fitted Group 48, 49, 94R, 95R depending on the factory battery option (PR code). Sources differ on which options were offered this year. Always confirm against your owner's manual or current battery label.

Verified fitLast checked 2026-06-18Confidence: medium - cross-checking in progress

Sources: BatterySize.co - 2016 Audi A6, CarSpecs - Audi A6 battery size

Reviewed by the GarageDex editorial team against manufacturer and retailer fitment data.

Audi fitted this model with different batteries depending on the factory battery option, which is recorded on the vehicle data sticker (usually in the spare-wheel well or the service booklet). The options use different case sizes - Group 48, 49, 94R or 95R - so they do not swap for one another. The quickest check is the label on the battery you are removing: buy the same group, and if it says AGM or EFB, replace it with the same type. The 640-950 CCA spread covers the smallest and largest of those options, so match or exceed the rating printed on your current battery.

The right battery for your 2017 Audi A6

This car used different batteries by factory option. Read the group and type on the label of the battery you are removing, then pick the matching group below. A battery is heavy to ship, so buying in person can win once you count free install and the core-charge refund - but to compare prices and reviews:

If yours is Group 48Group 48 - match the type and CCA on your current batteryShop Group 48 If yours is Group 49Group 49 - match the type and CCA on your current batteryShop Group 49 If yours is Group 94RGroup 94R - match the type and CCA on your current batteryShop Group 94R If yours is Group 95RGroup 95R - match the type and CCA on your current batteryShop Group 95R

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What does a 2017 Audi A6 battery cost?

The price depends on which battery option this car has: roughly $80-200 for a standard flooded battery, $200-235 for EFB, and $125-320 for AGM. Check the label on your current battery and buy the same group and type.

See the full breakdown of what car batteries cost - by type, by make, and what the extras actually add.

This car needs the battery registered

The battery type on this car depends on its factory option. If the battery you are removing is labeled AGM or EFB, the car has a smart charging system and the new battery should be registered to it, which a shop, a dealer, or an OBD-II tool that supports registration does in minutes. Audi is one of the makes where skipping that step shortens the new battery's life.

How battery registration works - what it does, and how to have it done.

What Group 48 means

A BCI group number describes the battery's physical size and terminal layout, not its power. It is what guarantees the battery drops into the tray and the cables reach the right posts. A Group 48 case measures roughly 278 × 175 × 190 mm. Standard-terminal layout.

Group 48 is one of the most common battery sizes on the road: it is the 1st most common of the 30 sizes across every vehicle we hold specs for, fitted to 21.7% of them. Every store stocks it, and you will never struggle to find one.

This car was built with Group 48, 49, 94R, 95R batteries depending on its factory battery option. These are different case sizes, so they do not swap for one another: match the group printed on the battery you are removing.

Every vehicle that takes a Group 48

How many cold cranking amps?

Aim for 640 CCA at minimum. Cold cranking amps measure how much current the battery can deliver at 0°F, which is the one moment a battery is really tested. The 640-950 range reflects the different batteries fitted across this vehicle's trims and options. Going above the OEM rating is safe and does no harm - the starter draws what it needs and no more, so a higher-CCA battery is not "too strong" for the car. It is worth paying for if you park outside in a cold climate, and largely wasted money if you do not. Going below 640 is the one thing to avoid, because that is where hard winter starts come from.

Can you use a higher-CCA battery?

How long it should last

The warning signs are worth knowing because they are easy to miss: cranking that sounds slower than it used to, headlights that dim at idle and brighten when you rev, or a car that starts fine every day until the first cold morning and then does not. A battery rarely warns you twice.

Frequently asked

What size battery does a 2017 Audi A6 take?

The 2017 Audi A6 was built with a BCI Group 48, 49, 94R, 95R battery depending on its factory battery option, rated around 640-950 cold cranking amps across those options. Match the group printed on the battery you are removing.

Does the 2017 Audi A6 need an AGM battery?

It depends on the factory battery option. Check the label on the battery you are removing: if it says AGM or EFB, replace it with the same type, because the charging system is set up for it.

How many cold cranking amps (CCA) does it need?

Aim for roughly 640-950 CCA. Choosing at or above the OEM rating is fine; going below can cause hard starts in cold weather.

Where is the battery located on a 2017 Audi A6?

Check the engine bay first - that is where most vehicles carry the battery. Be aware that some models put it in the trunk or under a seat instead (many BMW and Mercedes-Benz models, plus the Chrysler 300 and Dodge Charger, among others), so if the engine bay has none, look there or in your owner's manual. Standard-terminal layout.

How much does a 2017 Audi A6 battery cost?

Does a 2017 Audi A6 battery need to be registered?

How long should a 2017 Audi A6 battery last?

Most batteries last three to five years.