Mercedes-Benz A-Class Battery — Size, Type & Replacement (2018–2025)

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Most common fit — Mercedes-Benz A-Class: Bosch S5 A (AGM), type 027 — 60Ah 680A, AGM, type 027 (242mm) for the petrol A 160/180/200/250. Bosch S5 A (AGM), type 027 — check price on Amazon

Fitment varies by engine and build date — other variants are listed below.

Battery Specifications

60–80Ah
Capacity
640–800
CCA (Cold Cranking Amps)
AGM
Battery Type
ParameterSpecification
Battery Group027 on the petrol A 160 / 180 / 200 / 250; 096 on the A 220 and A 250 e; 115 on the diesels and the AMG models
TypeAGM on almost every variant. The A 200 mild hybrid is the one listed with EFB
Capacity60 Ah (type 027), 70 Ah (type 096) or 80 Ah (type 115)
Cold Cranking Amps640–680 A (027), 760 A (096) or 800 A (115)
Dimensions242 x 175 x 190 mm (027), 278 x 175 x 190 mm (096) or 315 x 175 x 190 mm (115)
Terminal TypeTop post
Start-Stop CompatibleYes

What the OE fitment data lists for this car

EngineBatteries listed
A 160, A 180, A 200, A 250 (petrol)027 AGM 60 Ah 680 A (242 x 175 x 190) – recommended; 096 AGM 70 Ah 760 A and 115 AGM 80 Ah 800 A also listed
A 200 mild hybrid (163 PS)027 EFB 60 Ah 640 A (242 x 175 x 190) – recommended; 027 AGM 60 Ah 680 A
A 220 (190 PS), A 220 mild hybrid 4matic096 AGM 70 Ah 760 A (278 x 175 x 190) – recommended; 115 AGM 80 Ah 800 A
A 160 d, A 180 d, A 200 d, A 220 d (diesel, incl. 4matic)115 AGM 80 Ah 800 A (315 x 175 x 190) – recommended. One A 180 d build (177.003) is listed with 027 AGM instead
A 250 e plug-in hybrid096 AGM 70 Ah 760 A or 115 AGM 80 Ah 800 A, depending on build code
AMG A 35 4matic (306 PS)115 AGM 80 Ah 800 A – recommended; the mild-hybrid build (177.051) is listed with 027 AGM 60 Ah 680 A
AMG A 45 S 4matic+ (421 PS)115 AGM 80 Ah 800 A (315 x 175 x 190) – recommended

Source: published VARTA battery-finder fitment data (varta-automotive.com) for the Mercedes-Benz A-Class (W177), consulted August 2026. No W177 A-Class is listed with a type 019 battery. Type 019 is a 353 mm case used on much larger cars and will not fit this one. Mercedes uses the chassis build code (177.0xx) to distinguish variants, so confirming by registration matters more on this car than most. Where more than one battery is listed, the manufacturer fits different sizes across builds — measure the battery you remove, or confirm by registration, before ordering.

No W177 A-Class is listed with a 353 mm type 019 battery. Match the case size and technology of the battery you remove.

AGM warning: nearly every A-Class W177 is listed with an AGM battery. Replace AGM with AGM – fitting an EFB or a plain flooded battery to a car built for AGM will shorten its life sharply and can upset the charging strategy.

Recommended Batteries for Mercedes-Benz A-Class

Bosch S5 A (AGM), type 027

60Ah 680A | AGM | type 027 (242mm) for the petrol A 160/180/200/250

Bosch S5 A (AGM), type 027 — check price on Amazon

Varta Silver Dynamic AGM, type 096

70Ah 760A | AGM | type 096 (278mm) for the A 220 and A 250 e

Varta Silver Dynamic AGM, type 096 — check price on Amazon

Yuasa YBX9000 AGM, type 115

80Ah 800A | AGM | type 115 (315mm) for the diesels and AMG models

Yuasa YBX9000 AGM, type 115 — check price on Amazon

Frequently Asked Questions

What battery does a Mercedes-Benz A-Class need?

It depends on the variant, and it is not a type 019. VARTA fitment data for the A-Class (W177) lists a type 027 AGM, 242 x 175 x 190 mm, at 60 Ah and 680 A for the petrol A 160, A 180, A 200 and A 250. The A 220 and A 250 e are listed with a type 096 AGM, 278 x 175 x 190 mm, at 70 Ah and 760 A, and the diesels and AMG models with a type 115 AGM, 315 x 175 x 190 mm, at 80 Ah and 800 A. Mercedes separates these by chassis build code, so confirm by registration before ordering.

Does the Mercedes-Benz A-Class need an AGM or EFB battery?

AGM on almost every variant. VARTA lists AGM for the petrols, the diesels, the A 250 e and both AMG models, with only the A 200 mild hybrid shown with an EFB. Replace AGM with AGM: a car built around AGM will destroy an EFB or a plain flooded battery quickly, and the charging strategy expects the AGM charge profile.

How long does a Mercedes-Benz A-Class battery last?

Typically 4–6 years depending on driving patterns. Short urban journeys and cold winters reduce battery life. Start-stop systems are harder on batteries, so quality AGM batteries are essential.

Can I replace the Mercedes-Benz A-Class battery myself?

Yes for most models — it’s usually located in the engine bay. However, start-stop vehicles may need the battery management system reset with a diagnostic tool after fitting.

How we check fitment for this guide

We cross-reference fitment figures against manufacturer specifications and OE-supplier catalogue data where available, and matched to the standard codes that actually govern fit — battery type/group sizes, wiper lengths and fitting types, bulb fitment codes, tyre size markings, and oil specifications. We work by make, model, year, engine, and build date, because a single model can take different parts across its life. Where the right part depends on your exact vehicle, we tell you to confirm by registration or VIN. More on our method →

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