Does the Bmw 3 Convertible 320 D need an AGM or EFB battery?

If your Bmw 3 Convertible 320 D has start-stop, regenerative braking or many electrical accessories, you will need an AGM or EFB battery. Check your vehicle's technical specifications.

What type of battery does my car need?

To find the exact battery you need, you need to know the make, model, and engine. If your car has a Start-Stop system (the engine shuts off at traffic lights), you need an AGM or EFB battery. An AGM battery can only be replaced with another AGM battery. However, an EFB battery can be replaced with either another EFB or an AGM battery, as the latter is superior.

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

The standard battery is the conventional type. The EFB battery withstands start/stop cycles better. The AGM battery is the most durable and is mandatory in cars with Start-Stop and regenerative braking. Never replace an AGM battery with an EFB or standard battery.

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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BMW 3 Convertible 320 d

Batteries for BMW 3 Convertible 320 d 184 hp (diesel, 2010-2013)

BMW · 3 Convertible

Which battery does a BMW 3 Convertible 320 d need?

Specifications and battery: 320 d (184 hp)

BMW 3 Convertible 320 d (184 hp, diesel, 2010-2013): depending on the equipment, it takes a 80 Ah, 800 A AGM battery (315 × 175 × 190 mm) or a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm). Measure your current battery before choosing. In every case the positive terminal is on the right.

Brand: BMW
Model: 3 Convertible (E93)
Built: 03/2010 - 10/2013
Power: 135 kW / 184 hp
Fuel: Diesel
Engine size: 1,995 cc (2 L)
Cylinders: 4
Body type: Convertible
Drive: Rear-Wheel Drive
Engine codes: N47 D20 C
Start-Stop battery: Yes (AGM/EFB)

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Depending on equipment 1	AGM	80 Ah	800 A	315 × 175 × 190 mm	+ on the right
Depending on equipment 2	AGM	95 Ah	850 A	353 × 175 × 190 mm	+ on the right

The same batteries also fit the 320 d (163 hp) engine of this model.

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

🔧 Battery Expert Advisor

Battery analysis for your BMW 3 Convertible 320 d

Quick answer Depending on the equipment, your car uses one of these two main batteries. The most common option is AGM 80 Ah (315×175×190 mm): we recommend VARTA A6. Other units use AGM 95 Ah (353×175×190 mm): VARTA A5. Before buying, check the Ah on your current battery's label or measure its length.

Batteries in your BMW 3 Convertible 320 d

MainDepends on equipmentSee all in the list →

Measure the length of yours: 315 or 353 mm

Recommended

VARTA A6

AGM80 Ah800 A

315 × 175 × 190 mm

€147.30Buy

Alternative

VARTA A5

AGM95 Ah850 A

353 × 175 × 190 mm

€179.99Buy

Prices and availability updated on 19/10/2026

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

📋 What we found

For your BMW 3 Convertible 320 d we found 2 compatible Start-Stop batteries.

📏 Battery size

The list contains batteries in different sizes or capacities (Ah). In many cases both variants fit, but it's worth checking your compartment dimensions and the Ah of your original battery before buying. Choose the one with the same dimensions as your current battery: a bigger one may not fit the compartment or the hold-down. If several match your size, the higher capacity gives more headroom for cold starts.

⚡ Battery type for your vehicle

✓ Your BMW 3 Convertible 320 d uses the Start-Stop system. Every battery shown is compatible — no conventional options to confuse you.

🔋 Technology (AGM / EFB)

✓ All Start-Stop batteries in the list are AGM — the most advanced technology. Perfect if your current battery was AGM or EFB: AGM always replaces both. Remember to register it via OBD if your car has a BMS (BMW, Audi, VAG, Mercedes…) so the alternator charges it correctly.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your BMW 3 Convertible 320 d we recommend the VARTA A6 (AGM, 80 Ah). It's the battery recommended by the vehicle manufacturer for your BMW 3 Convertible 320 d — 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 4.9/5 by 14 verified customers.
Next-day delivery if you order before 6 PM.
The best value price among compatible options.

See this battery →

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Verified selection

Class: Car Batteries
Brand: BMW
Model: 3 Convertible
Engine: 320 d

Receive them tomorrow before 2 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 — Start-Stop requires AGM or EFB)
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.

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.

2 products

This engine comes with an AGM/EFB battery as standard: the car's charging system requires it even without Start-Stop. If in doubt, message us and we will confirm.

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Start-Stop & high energy demand batteries	VARTA	A6	80 Ah	800 A	315×175×190 mm	AGM	€147.30	More info
Start-Stop & high energy demand batteries	VARTA	A5	95 Ah	850 A	353×175×190 mm	AGM	€179.99	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

: BMW 3 Convertible 320 d (184 hp, diesel, 2010-2013): depending on the equipment, it takes a 80 Ah, 800 A AGM battery (315 × 175 × 190 mm) or a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm). Measure your current battery before choosing. In every case the positive terminal is on the right. Compatible batteries offer 80-95 Ah, 800-850 A (CCA), 12 V, case H7/L4, Start-Stop (EFB/AGM) technology. Browse the compatible battery list below.
: If your Bmw 3 Convertible 320 D has start-stop, regenerative braking or many electrical accessories, you will need an AGM or EFB battery. Check your vehicle's technical specifications.
: To find the exact battery you need, you need to know the make, model, and engine. If your car has a Start-Stop system (the engine shuts off at traffic lights), you need an AGM or EFB battery. An AGM battery can only be replaced with another AGM battery. However, an EFB battery can be replaced with either another EFB or an AGM battery, as the latter is superior.
: The standard battery is the conventional type. The EFB battery withstands start/stop cycles better. The AGM battery is the most durable and is mandatory in cars with Start-Stop and regenerative braking. Never replace an AGM battery with an EFB or standard battery.
: 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 and Portugal delivery takes 24 working hours if you order before 6:00 pm and the battery is in stock; for the Balearic Islands and other EU destinations allow 2 to 5 days. Batteries are shipped fully charged and ready to install.

Guides

: This vehicle uses an AGM or EFB Start-Stop battery: after any replacement it must be registered via OBD so the BMS applies the correct charging profile. Without this step, the battery service life could be significantly reduced; on some vehicles (BMW, Audi, VAG, Mercedes) the alternator may stop charging it altogether.

Batteries for BMW 3 Convertible 320 d 184 hp (diesel, 2010-2013)

Which battery does a BMW 3 Convertible 320 d need?