How many Ah does the Audi A8 D3 4.2 Quattro battery need?

The exact Ah rating for the Audi A8 D3 4.2 Quattro depends on the vehicle's original electrical consumers. Compatible batteries offer 105-110 Ah, 920-950 A (CCA), 12 V, case H9/L6, conventional flooded technology. Use our finder for a precise recommendation.

What type of battery does my car need?

You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.

What is the difference between AGM, EFB and standard batteries?

A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.

How do I find the right battery for my vehicle?

Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.

What warranty do the batteries have?

All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.

How long does it take for the battery to arrive?

Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

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Audi A8 D3 4.2 quattro

Batteries for Audi A8 D3 4.2 quattro 335 hp (petrol, 2002-2010)

Audi · A8 D3

Which battery does a Audi A8 D3 4.2 quattro need?

Specifications and battery: 4.2 quattro (335 hp)

Audi A8 D3 4.2 quattro (335 hp, petrol, 2002-2010) uses a conventional 110 Ah, 920 A battery (393 × 175 × 190 mm), with the positive terminal on the right. A conventional battery is enough; for a longer life, an EFB or AGM with the same dimensions also works.

Brand: Audi
Model: A8 D3 (4E2, 4E8)
Built: 10/2002 - 07/2010
Power: 246 kW / 335 hp
Fuel: Petrol
Engine size: 4,172 cc (4.2 L)
Cylinders: 8
Body type: Saloon
Drive: All-wheel Drive
Engine codes: BFM, BGK
Start-Stop battery: Not required

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Main	Conventional	110 Ah	920 A	393 × 175 × 190 mm	+ on the right

This engine shares its battery with the 3.0 (220 hp), 4.2 FSI quattro (350 hp) and S8 quattro (450 hp): the compatible batteries are exactly the same.

Data: vehicle specifications and the battery manufacturer's application catalogue.

🔧 Battery Expert Advisor

Battery analysis for your Audi A8 D3 4.2 quattro

Quick answer You need an ordinary lead-acid battery of 110 Ah. Our recommendation: VARTA I1.

VARTAI1

ordinary lead-acid110 Ah920 A393×175×190

€123.70

Buy

Prices and availability updated on 26/10/2026

Based on the batteries we found for your vehicle, our experts help you pick the right one.

📋 What we found

For your Audi A8 D3 4.2 quattro we found 8 compatible batteries. This list includes 5 Start-Stop batteries and 3 conventional batteries (non Start-Stop).

⚡ Battery type for your vehicle

✓ Your Audi A8 D3 4.2 quattro does not need a Start-Stop battery. The conventional ones shown fit your vehicle and are the most affordable option. If you want a higher-quality, longer-lasting battery, you can also fit an EFB or AGM as an upgrade — they are fully compatible and last more years.

🔋 Technology (AGM / EFB)

Do you know whether your car's current battery is AGM or EFB?

Check your battery label: "AGM" or "VRLA" means AGM; "EFB" means EFB. If it says neither, it is probably conventional: on a Start-Stop car, ask us before buying. Never fit a conventional battery on a Start-Stop car, nor an EFB where an AGM was fitted.

Where do I check if my battery is AGM or EFB?

Can I fit an AGM if my car had EFB?

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your Audi A8 D3 4.2 quattro we recommend the VARTA I1 (ordinary lead-acid, 110 Ah). It's the battery recommended by the vehicle manufacturer for your Audi A8 D3 4.2 quattro — the OEM equivalent. Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.

Rated 4.8/5 by 14 verified customers.
Get it tomorrow if you order before 6 PM.
35% cheaper than the most expensive option in the list.

See this battery →

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Verified selection

Class: Car Batteries
Brand: Audi
Model: A8 D3
Engine: 4.2 quattro

Receive them tomorrow before 5 PM if you order before 6 PM (Spain mainland and Portugal only).

Before you buy: check 3 key points

Although the batteries shown are sourced from information provided by manufacturers, we recommend checking on your current battery:

Dimensions (length × width × height, including terminals and protrusions)
The dimensions shown are the maximum of the battery and include the height of the terminals, small ridges at the base and any lateral protrusions. Measure your current battery completely, from edge to edge. The new one must be the same size or slightly smaller — never larger, it would not fit in the housing.
Positive terminal (left or right viewed from the front — check the battery photo carefully)
Stand facing the battery, with the manufacturer's label facing you and the terminals on top. Locate the terminal marked with +: if it is on your right, it is "positive right"; if it is on your left, it is "positive left". Do not rely on how the battery is mounted in the car — the position is always measured looking only at the battery itself.
Technology (AGM, EFB or conventional — the same as your current battery or higher)
Depending on the manufacturer, the same technology may be labelled differently: AGM may also appear as VRLA, AGM Start-Stop or AGM Deep Cycle. EFB may appear as EF, EFB+ or Enhanced Flooded Battery. Conventional may appear as SLI, Lead-Acid, Wet or Standard. If your vehicle has Start-Stop, the battery must be AGM or EFB — never conventional.

If you have any questions, just ask us and we'll be glad to advise you with no obligation.

Conventional Battery

This is a standard or conventional battery for vehicles without a start-stop system

3 products

Compare the technologies available for your car

A higher technology withstands more charge and discharge cycles, according to manufacturers. If your car has Start-Stop, it needs EFB or AGM.

Conventional (lead-acid) For normal use in cars without Start-Stop. from €115.70 View EXIDE EB1100
EFB Up to 2× more cycles than a conventional battery. Good for short trips and city driving. from €127.40 +€11.70 View TUDOR TL1050
AGM Up to 3× more cycles than a conventional battery. The highest performance, ideal with lots of electrical equipment. from €165.70 +€50.00 View EXIDE EK1060

Why we recommend the VARTA I1

For €8.00 more you get +70 A cold cranking.

	RecommendedVARTA I1	CheapestEXIDE EB1100
Cold cranking	920 A	850 A
Capacity	110 Ah	110 Ah
Technology	Conventional	Conventional
Why	OEM fitment	—
Price	€123.70	€115.70

View VARTA I1

Recommended conventional
Car battery Varta I1 12V 110Ah 920A
- 12 V
- 110 Ah
- 920 A
Dimensions 393×175×190 mm
- ✓ OEM fitment
€123.70
Compare
Car battery Tudor TB1100 12V 110Ah 850A
- 12 V
- 110 Ah
- 850 A
Dimensions 392×175×190 mm

€118.10
Compare
Car battery Exide EB1100 12V 110Ah 850A
- 12 V
- 110 Ah
- 850 A
Dimensions 392×175×190 mm

€115.70
Compare

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Conventional Battery	VARTA	I1	110 Ah	920 A	393×175×190 mm	Conventional	€123.70	More info
Conventional Battery	TUDOR	TB1100	110 Ah	850 A	392×175×190 mm	Conventional	€118.10	More info
Conventional Battery	EXIDE	EB1100	110 Ah	850 A	392×175×190 mm	Conventional	€115.70	More info

Start-Stop & high energy demand batteries

AGM or EFB battery for start-stop vehicles and for cars with high energy demand (many electrical consumers, frequent starts). More charge cycles, better charge recovery and longer service life.

5 products

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Start-Stop & high energy demand batteries	VARTA	A4	105 Ah	950 A	394×175×190 mm	AGM	€189.30	More info
Start-Stop & high energy demand batteries	TUDOR	TL1050	105 Ah	950 A	392×175×190 mm	EFB	€127.40	More info
Start-Stop & high energy demand batteries	EXIDE	EK1060	106 Ah	950 A	392×175×190 mm	AGM	€165.70	More info
Start-Stop & high energy demand batteries	TUDOR	TK1060	106 Ah	950 A	392×175×190 mm	AGM	€175.70	More info
Start-Stop & high energy demand batteries	EXIDE	EL1050	105 Ah	950 A	392×175×190 mm	EFB	€186.60	More info

Complete your purchase

Chargers

Chargers for your battery

1 product

Battery charger ABSAAR Pro4.0 6/12V 4A Smart Charger
- 6 V
€50.60

Frequently asked questions

: Audi A8 D3 4.2 quattro (335 hp, petrol, 2002-2010) uses a conventional 110 Ah, 920 A battery (393 × 175 × 190 mm), with the positive terminal on the right. A conventional battery is enough; for a longer life, an EFB or AGM with the same dimensions also works. Compatible batteries offer 105-110 Ah, 920-950 A (CCA), 12 V, case H9/L6, conventional flooded technology. Browse the compatible battery list below.
: The exact Ah rating for the Audi A8 D3 4.2 Quattro depends on the vehicle's original electrical consumers. Compatible batteries offer 105-110 Ah, 920-950 A (CCA), 12 V, case H9/L6, conventional flooded technology. Use our finder for a precise recommendation.
: You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.
: A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.
: Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.
: All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.
: Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.
: In mainland Spain delivery takes 24-48 working hours if you order before 6:00 pm (Monday to Friday) and the battery is in stock; mainland Portugal takes 1 to 4 working days, the Balearic Islands 2 to 5 working days and other EU destinations 4 to 7 working days. Batteries are shipped fully charged and ready to install.

Guides

: This vehicle has no Start-Stop. The manufacturer requires the new battery to be registered via OBD with a diagnostic tool and, if you change technology (EFB → AGM), coded; without this step it lasts much less.

Batteries for Audi A8 D3 4.2 quattro 335 hp (petrol, 2002-2010)

Which battery does a Audi A8 D3 4.2 quattro need?