Audi Q2 Battery: Specs, Fitment & Common Faults

On the Q2, 48V mild hybrid alternator failure genuinely has a 7-year US extended warranty, but UK owners have struggled to get equivalent support from Audi UK for the same fault.

Illustration for editorial purposes

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OEM Part Number: 000915105

Genuinely useful to know: Audi's current genuine battery part numbers follow a consistent pattern — 000915105 followed by a two-letter suffix that encodes the exact capacity and technology (e.g. "CB" = 58Ah AGM, "CE" = 92Ah AGM). Checking the suffix on your existing battery's label is a reliable way to confirm the exact replacement.

Standard Start/Stop fitment (EFB)	Type 027 (L2), 60Ah, 640A (EN)
AGM fitment, higher-demand variants	Type L3 (096), 70Ah, 760A (EN)
Genuine part number format	000915105 + two-letter suffix — confirm the exact suffix via your existing battery's label or VIN

Audi Q2 Battery: The Part Everyone Blames First, Not Always Correctly

On the Audi Q2, the battery takes the blame for most no-start situations, and often rightly so — it's a sensible first check. But it isn't always the genuine cause, which is worth establishing before paying for a new one that turns out not to solve anything.

Before you buy: battery size, capacity and type (standard vs AGM/EFB for stop-start systems) vary by trim and engine. Always confirm against your VIN before ordering.

Audi Q2 Battery: What It Does

The Audi Q2's 12V battery handles engine starts and keeps electrical systems running whenever the engine isn't. On stop-start versions, that job gets much harder, since the engine switches off and restarts constantly — which is why it specifically needs an AGM or EFB battery, not a standard one.

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A Genuinely Important, Confirmed Finding Worth Knowing — Audi Q2 Battery

If you own a model fitted with the 48V mild hybrid system, this is genuinely worth knowing: alternator failure specifically related to this system has been confirmed in the US with an extended warranty of seven years. UK owners have documented finding it genuinely difficult to get equivalent support directly from Audi UK for the same fault.

A genuinely useful diagnostic reading worth knowing: a healthy trickle charge to the alarm system typically measures around 0.03 amps at rest, so anything notably higher points toward a genuine parasitic drain.

It's also genuinely worth knowing that disconnecting the old battery to replace it yourself can result in various computer settings being lost, worth using a proper memory-saving device during the swap.

Audi Q2 Battery: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Battery Guide for warning signs to watch for, confirming fitment against your VIN, and matching the right technology (standard, EFB, AGM) when buying aftermarket.

More Audi Battery

The same part, covered across other Audi models.