Mercedes GL-Class X166 (from 2012) – batteries


Choosing the right battery for your Mercedes-Benz GL-Class X166, manufactured from 2012 onwards, is a crucial aspect of maintaining both performance and reliability in such a sophisticated vehicle. The GL-Class X166 is renowned for its luxury, robust engines, and advanced technology, so ensuring it has a high-quality, suitable battery is essential for optimal operation. Based on the provided information, the main engine variants for this model, including the GL 400 4MATIC, GL 500 4MATIC, GL 63 AMG, and GL 350 BlueTec 4MATIC, all require similar battery specifications, which simplifies the selection process for owners of different versions of the GL-Class X166.

For all these engine options, whether you drive a petrol-powered GL 400 or GL 500, the high-performance GL 63 AMG, or the diesel GL 350 BlueTec, the recommended battery type is an AGM battery. AGM stands for Absorbent Glass Mat, a technology that offers several advantages over traditional lead-acid batteries. AGM batteries are particularly appreciated in modern vehicles because they are designed to handle higher electrical demands due to advanced onboard electronics, which are abundant in the GL-Class X166. They are also more resistant to vibration and have a lower risk of acid leakage, which makes them safer and more durable, especially in large, powerful SUVs that may be used in a variety of driving conditions.

The exact battery size for these models should have a capacity between 95 and 96 Ah (ampere-hours), and the cold cranking amperage (CCA) requirement is 850A. These parameters ensure that the battery can reliably start the engine and power the vehicle’s numerous electrical systems, even in cold weather or after the vehicle has been stationary for some time. It’s worth noting that all the mentioned Mercedes-Benz GL-Class X166 variants do not feature a Start-Stop system, which is important because vehicles equipped with Start-Stop often need a different specification of battery, typically with even more robust cycling capabilities. Since the X166 in these versions does not use Start-Stop, the specified AGM battery with the given capacity and CCA is perfectly suited for the job.

As for compatible battery models, there are several high-quality options available on the market. Some of the exemplary and suitable battery models include the Bosch S5A 13, Exide EK950, Exide EK960, Halfords AGM 019, Lucas LF017, and Varta G14. These models are well-known for their reliability and performance, and each is designed to meet the demands of large, feature-rich vehicles like the Mercedes-Benz GL-Class X166. It is important to remember, however, that these are examples of compatible models; when choosing a battery, always double-check the physical dimensions and terminal layout to ensure a proper fit in your specific vehicle.

An interesting detail about AGM batteries is their ability to recover from deep discharges better than traditional batteries, which adds to their appeal for vehicles that may experience higher power usage. Moreover, AGM batteries are maintenance-free, meaning you do not have to top up the electrolyte or worry about acid spills, which is a significant convenience for drivers who prefer a hassle-free ownership experience. Another point to consider is that a good-quality AGM battery may have a higher upfront cost, but its longevity and performance often justify the investment, especially in a premium vehicle like the Mercedes-Benz GL-Class X166.

In summary, when selecting a battery for your Mercedes-Benz GL-Class X166 from 2012 onwards, opt for an AGM battery with a capacity of 95-96 Ah and a cold cranking amperage of 850A. While there are several exemplary models to choose from, such as those from Bosch, Exide, Varta, and others, always ensure compatibility with your specific car. Investing in a high-quality AGM battery will help maintain your vehicle’s comfort, performance, and reliability, ensuring that every journey in your GL-Class is as enjoyable and trouble-free as possible.



Mercedes-Benz GL-Class in version X166 is produced from 2012. The following table presents information about batteries that match each of the engines available on the market.

Basic parameters of batteries suitable for Mercedes-Benz GL-Class (2012-):

LayoutTerminal typesBase hold-down
0 – positive on the right side1B13

Mercedes-Benz GL-Class X166 – petrol engines:
  • GL 400 4-matic
  • GL 500 4-matic
  • GL 63 AMG

ModelCapacity and CCADimensions (LxWxH)Price
Bosch S5 AGM
S5A 13
95 Ah
850 A
353x175x190 mmMore
Exide AGM
EK950
95 Ah
850 A
353x175x190 mmMore
Exide AGM
EK960
96 Ah
850 A
353x175x190 mmMore
Halfords Advanced
AGM 019
95 Ah
850 A
353x175x190 mmMore
Lucas Fusion AGM
LF017
95 Ah
850 A
353x175x190 mmMore
Varta Silver Dynamic AGM
G14
95 Ah
850 A
353x175x190 mmMore
The above three petrol engines of the Mercedes-Benz GL-Class X166, namely GL 400 4-matic ,GL 500 4-matic and GL 63 AMG, will perform best with batteries of at least 92 Ah capacity. We recommend choosing higher-end battery models for cars with a large number of optional extras. The weakest of these is the battery Bosch S5 AGM S5A 13 which capacity is 95 Ah and Cold Cranking Amps is 850 A. The most powerful battery is Exide AGM EK960 of a capacity 96Ah and Cold Cranking Amps: 850 A. All of the above motors have a base hold-down B13.

Mercedes-Benz GL-Class X166 – diesel engines:
  • GL 350 BlueTec 4-matic

ModelCapacity and CCADimensions (LxWxH)Price
Bosch S5 AGM
S5A 13
95 Ah
850 A
353x175x190 mmMore
Exide AGM
EK950
95 Ah
850 A
353x175x190 mmMore
Exide AGM
EK960
96 Ah
850 A
353x175x190 mmMore
Halfords Advanced
AGM 019
95 Ah
850 A
353x175x190 mmMore
Lucas Fusion AGM
LF017
95 Ah
850 A
353x175x190 mmMore
Varta Silver Dynamic AGM
G14
95 Ah
850 A
353x175x190 mmMore
The Mercedes-Benz GL-Class X166 with a GL 350 BlueTec 4-matic diesel engine should be compatible with batteries of dimensions 353x175x190 mm, with a minimum capacity of 92 Ah. The most basic battery of this set is Bosch S5 AGM S5A 13 of a capacity 95Ah and 850A Cold Cranking Amps, the battery with the biggest capacity is Exide AGM EK960 of a capacity 96 Ah, having 850A Cold Cranking Amps. All batteries compatible with the GL 350 BlueTec 4-matic engine have a B13 mount.
If you’re still unsure which battery fits your Mercedes-Benz GL-Class , or if you want to help others in their selection, please send us a photo of your current battery in the comment section at the bottom of the page. You can also send the picture to contact@whatbattery.co.uk (we will place it in the comments to also help other users). Be sure to specify the car model, year, type, as well as the engine capacity and power. We’ll do our best to assist you!

See also information about other cars of this manufacturer

Mercedes-Benz A-Class I (W168) (1997-2004) battery
Mercedes-Benz A-Class II (W169) (2004-2012) battery
Mercedes-Benz B-Class W245 (2005-2011) battery
Mercedes-Benz B-Class W246 (2011-) battery
Mercedes-Benz C-Class I (W202) (1993-2000) battery
Mercedes-Benz C-Class II (W203) (2000-2007) battery
Mercedes-Benz C-Class W204 (2007-2014) battery
Mercedes-Benz Citan W415 (2012-) battery
Mercedes-Benz CLA I (C117) (2013-) battery
Mercedes-Benz CLC-Class CL203 (2008-2010) battery
Mercedes-Benz CLK W208 (1997-2003) battery
Mercedes-Benz CLK W209 (2002-2009) battery
Mercedes-Benz CLS C218 (2011-) battery
Mercedes-Benz CLS C219 (2004-2010) battery
Mercedes-Benz E-Class I (W124) (1993-1995) battery
Mercedes-Benz E-Class II (W210) (1995-2002) battery
Mercedes-Benz E-Class III (W211) (2002-2008) battery
Mercedes-Benz E-Class W212 (2009-2016) battery
Mercedes-Benz GL-Class X164 (2006-2012) battery
Mercedes-Benz GLA I (X156) (2013-2019) battery
Mercedes-Benz ML W163 (1997-2005) battery
Mercedes-Benz ML W164 (2005-2011) battery
Mercedes-Benz ML W166 (2011-2015) battery
Mercedes-Benz S-Class W220 (1998-2005) battery
Mercedes-Benz S-Class W221 (2005-2013) battery
Mercedes-Benz S-Class Coupe C140 (1992-1999) battery
Mercedes-Benz S-Class Coupe C215 (1999-2006) battery
Mercedes-Benz SL R129 (1989-2001) battery
Mercedes-Benz SL R230 (2001-2012) battery
Mercedes-Benz SL R231 (2012-) battery
Mercedes-Benz SLK R170 (1996-2004) battery
Mercedes-Benz SLK R171 (2004-2011) battery
Mercedes-Benz SLK R172 (2011-) battery
Mercedes-Benz V-Class (638/2) (1996-2003) battery
Mercedes-Benz V-Class (W447) (2014-) battery
Mercedes-Benz Viano (W639) (2003-2010) battery


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