About the Mercedes ML450 Hybrid
Mercedes ML450 Exclusive Features
The Mercedes ML450 Hybrid has a few exclusive features that differentiate it from other ML models
- The “chill down” mode enables battery recovery under excessive load or high temperatures
- “Power Launch Control” facilitates the best possible acceleration figures in boost mode
- The “Traffic Jam” feature enables pure electric driving in stop-and-go operation, even when the battery charge status is low
Mercedes ML450 Specifications
| Gasoline Engine Displacement | 3.5 liters |
| Engine | 6 cylinders Atkinson cycle |
| Engine Format | V6 |
| Fuel Type | Gasoline |
| Total Horsepower | 335 hp |
| Engine Horsepower | 275 hp at 6000RPM |
| Electric Motor Power | Motor 1: 83 Motor 2: 80 |
| Total Torque | 381 lb-ft |
| Engine Torque | 258 lb-ft at 3000RPM |
| Electric Motor Torque | Motor 1: 173 Motor 2: 192 |
| 0-60 time | 7.8 seconds |
| 1/4 mile time | 15.8 seconds |
| Top Speed | 131 mph |
| Drivetrain | 4MATIC all-wheel drive (AWD) |
| Fuel Economy | City: 21 mpg Highway: 24 mpg |
| Fuel Tank Capacity | 23.8 gallons |
| Range | 520 miles |
Mercedes ML450 Hybrid Battery Specifications
Drive Battery
In the ML450 HYBRID, electrical energy is stored in a compact, liquid-cooled, high-voltage nickel metal hydride battery.
| Battery Type | Nickel Metal Hydride (NiMH) |
| Location | Below rear cargo area |
| Weight | 183lbs 83kg |
| Modules / cells (no.) | 24 / 240 |
| Power / Output | 45kW |
| Capacity | 2.4kWh |
| Voltage | 288V |
The ML450 Hybrid features a battery management system monitors that controls the charge flow during driving and ensures stable charging.
Where can I find a replacement drive battery for the Mercedes ML450 Hybrid?
Mercedes. Likely the best source of a replacement battery for your Mercedes ML450 Hybrid is the source of your car itself. Check with Mercedes first, especially if you are worried about a warranty or lien requirements. Mercedes has a great dealer lookup on their website:
Junkyards! When a Mercedes ML450 Hybrid is wrecked, it goes to the wrecking yard. Often the batteries are still usable as even a light impact can send a vehicle to the scrap heap.
Car-part.com allows you to search wrecking yards all over the nation and has a great list of Mercedes ML450 Hybrid Batteries available.
eBay – If you can’t find a replacement at your local yard, and want to find something more reputable online, you might check ebay.
“Mercedes ML450 Hybrid replacement battery” on eBay
What can I expect when purchasing a replacement battery for my ML450?
The process for purchasing a battery for your ML450 Hybrid can include a few surprises:
- Core Charges – A “core charge” is where a vendor charges you a fee as collateral until you send them the part that you are replacing, in this case the battery pack. It is not unusual to see a core charge be the same price as your used battery, typically around $1000-3000.
- Shipping Charges – Batteries are heavy! You can’t exactly toss one in the mailbox. Some vendors will include the cost of batteries in your purchase. Others may charge you anywhere from $100 to $300 to ship. You may also be assessed an additional charge to deliver to a residential address.
- Packaging – If you need to ship your battery to a vendor, you may want to consider the cost of packaging. Typically if you are returning a core, you can simply put your old battery in the same packaging that your replacement battery came in, and ship it back. Be extra careful when packing your battery as most vendors require a core battery to be able to be refurbished, and you may not receive back your core charge if the battery is damaged in transit.
12V Battery
The Mercedes ML450 Hybrid features a 12V auxiliary AGM battery for powering the ECU, BCU, and entertainment systems in the vehicle. These batteries wear out a little faster than the drive batteries and tend to need to be replaced every 5-10 years. Here are some replacement options we have compiled:
| Bosch S6588B S6 Flat Plate AGM 12V Battery | Amazon, eBay |
| Deka 9A49 AGM Intimidator Battery | Amazon |
Mercedes ML450 Hybrid 12V Battery Terminal Maintenance
Maintaining your Mercedes ML450 Hybrid 12V battery terminals is essential to ensuring a positive electrical contact. We recommend cleaning terminals and using a terminal protectant spray to prevent corrosion on your battery terminals.
CRC Battery Cleaner w/ Acid Detector will clean your battery terminals and surface, neutralizing acids and detecting leaks.
CRC Battery Terminal Protector Spray is designed to protect battery terminals from corrosion, a leading cause of hard starting and battery failure.
Mercedes ML450 Hybrid 12V Battery Testing, Maintenance and Repair
Battery testers are an inexpensive way to save yourself time in repairing your Mercedes ML450 Hybrid. A healthy 12V battery will read between 12.6 and 12.8 volts when tested. Anything lower, and you may want to consider replacing your batteries or checking the battery fluid levels.
Remote Key Fob Battery
The Mercedes ML450 Hybrid key fob uses a CR2025 lithium battery. You can easily find these in your local grocery store or online.
Energizer CR2025 Lithium Battery on Amazon
Mercedes ML450 Hybrid Drivetrain
From Mercedes themselves:
The ML450 HYBRID has a powertrain architecture that enables both purely-electric and purely-combustion engine operation, as well as a combination of both.
At the heart of the two-mode hybrid driveline is a transmission unit with two compact electric motors, three planetary gear sets and four clutches. This configuration enables the drive to be split through one electrical and one mechanical route. Conventional one-mode hybrid systems generally have no mechanical gearing. Their most efficient operation takes place largely at lower loads and speeds.
In contrast, as load and speed increases, the ML450’s two-mode hybrid technology system functions more effectively under all conditions ranging from stop-and-go city traffic to rapid highway driving. It also enables the use of more compact electric motors.
- Pulling away or at low speeds, the ML450 HYBRID operates in ECVT 1 mode (Electric Continuously Variable Transmission)
- The ECVT 2 mode takes over at higher speeds starting at the second fixed gear ratio. Depending on the optimum operating point, either a combined or constantly variable mode will be selected.
- In the first and third fixed gear ratios, both electric motors operate together either to provide additional energy for acceleration (boost) or to store the braking and drive energy (recuperation).
- In the second and fourth fixed ratio, one of the electric motors is switched off in order to increase efficiency. The other electric motor is used for boost and for recuperation.
Mercedes-Benz ML450 Hybrid Press Release Apr 8, 2009
Mercedes ML450 Hybrid Manuals, Guides and Other Books
ML450 Hybrid Owners Manuals
Mercedes publishes all owners manuals digitally for both current vehicles and past vehicles alike. It is a great resource for all aspects of operating and maintaining your Mercedes. They make it easy to search by Year / Make / Model:
Mercedes Digital Owners Manuals (US)
For physical owners manuals to carry with your Mercedes, you might consider the following sources:
- 2010 Mercedes ML450 Hybrid Owner’s Manual (eBay)
Join a Mercedes ML450 Hybrid Community
Find online community members who also enjoy the Mercedes ML450 Hybrid by checking out a forum or online group:
MBWorld.com / Mercedes M Class (W164) – Official photo threads, VIN checks, buyers guide information and a whole host of other information that will enhance the ownership of your Mercedes ML450 Hybrid.
MercedesClub.org.uk / Hybrids – A MB forum hosted in the UK. Discussions related to Mercedes Electric Vehicles, EQ range and Hybrids only.
Reddit.com/r/Mercedes_Benz – The home of Mercedes-Benz on Reddit. A place for fans to meet, share, news and other interesting information about our beloved brand.