The Mahindra Bolero (CJ7) 2.5 D 4WD, produced from 2001 to 2007, represents a significant iteration of Mahindra’s popular Bolero utility vehicle. Built upon the foundation of the older CJ series, the CJ7 Bolero aimed to blend rugged off-road capability with a degree of practicality for both commercial and personal use, primarily targeting the Indian market. This specific 2.5-liter diesel, 72 horsepower variant with four-wheel drive occupied a crucial position in the Bolero lineup, offering a balance between affordability, durability, and functionality. It served as a workhorse for rural communities and businesses, and a relatively accessible entry point into the 4×4 SUV segment.
Technical Specifications
| Brand | Mahindra |
| Model | Bolero |
| Generation | Bolero (CJ7) |
| Type (Engine) | 2.5 D (72 Hp) 4WD |
| Start of production | 2001 |
| End of production | 2007 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle, SUV |
| Seats | 8 |
| Doors | 5 |
| Fuel Type | Diesel |
| Maximum speed | 115 km/h (71.46 mph) |
| Weight-to-power ratio | 23.5 kg/Hp, 42.5 Hp/tonne |
| Weight-to-torque ratio | 11.2 kg/Nm, 89.7 Nm/tonne |
| Power | 72 Hp @ 4000 rpm |
| Power per litre | 28.8 Hp/l |
| Torque | 152 Nm @ 2000 rpm (112.11 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2498 cm3 (152.44 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 94 mm (3.7 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 23:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Precombustion chamber injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 1695 kg (3736.84 lbs.) |
| Max. weight | 2280 kg (5026.54 lbs.) |
| Max load | 585 kg (1289.7 lbs.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4285 mm (168.7 in.) |
| Width including mirrors | 1815 mm (71.46 in.) |
| Height | 1810 mm (71.26 in.) |
| Wheelbase | 2680 mm (105.51 in.) |
| Front track | 1443 mm (56.81 in.) |
| Rear (Back) track | 1443 mm (56.81 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Coil spring |
| Rear suspension | Coil spring |
| Front brakes | Disc |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Power steering | Hydraulic Steering |
| Tires size | 215/75 R15 |
| Wheel rims size | 15 |
Powertrain & Engine Architecture
The heart of the Bolero CJ7 2.5 D 4WD is its 2.5-liter inline-four diesel engine. This engine, often referred to by its engine code, is a relatively simple, robust design utilizing precombustion chamber injection. This system, common in older diesel engines, involves injecting fuel into a precombustion chamber connected to the main cylinder, promoting more complete combustion. The engine produces 72 horsepower at 4000 rpm and 152 Nm (112 lb-ft) of torque at 2000 rpm. The engine’s longitudinal mounting and the use of a five-speed manual transmission contribute to its off-road prowess. The transmission is known for its durability, though it lacks the refinement of more modern gearboxes.
Driving Characteristics
The 2.5 D 4WD Bolero prioritizes functionality over outright performance. Acceleration is modest, and the engine requires diligent shifting to maintain momentum, especially when loaded or tackling inclines. The 4×4 system, selectable via a lever, provides enhanced traction in challenging terrain. The gear ratios are geared towards low-end torque, making it suitable for hauling and navigating rough roads. Compared to potential upgrades like a turbocharger or more powerful engine options available in later Bolero models, this 72 hp version feels noticeably underpowered, but it offers a simpler, more reliable driving experience. The manual transmission, while not particularly precise, is durable and well-suited to the engine’s characteristics.
Equipment & Trim Levels
The Bolero CJ7 2.5 D 4WD was typically offered with a fairly basic level of equipment, reflecting its utilitarian focus. Standard features generally included power steering, a relatively simple dashboard layout, and vinyl or basic cloth upholstery. Air conditioning was often an optional extra, as were power windows. The interior was designed for practicality and ease of cleaning, rather than luxury. The focus was on providing a functional space for both driver and passengers, with seating for up to eight occupants. Trim levels were limited, with most variations revolving around the inclusion of optional accessories.
Chassis & Braking
The Bolero CJ7 utilizes a body-on-frame construction, providing a robust and durable chassis capable of withstanding harsh conditions. Suspension consists of coil springs at both the front and rear, offering a reasonably comfortable ride, though it can feel somewhat bouncy when unladen. The braking system features disc brakes on the front wheels and drum brakes on the rear. While adequate for its intended use, the braking performance is not particularly strong by modern standards. The inclusion of an Anti-lock Braking System (ABS) was a notable feature for its time, enhancing safety, particularly on slippery surfaces.
Market Reception & Comparison
The Mahindra Bolero CJ7 2.5 D 4WD was well-received in the Indian market for its affordability, ruggedness, and practicality. Critics praised its off-road capability and its ability to handle rough terrain. However, the engine’s lack of power and the vehicle’s relatively basic interior were often cited as drawbacks. Compared to other vehicles in its class, such as the Tata Sumo, the Bolero offered a more refined driving experience and a more modern design. Fuel economy was reasonable for a vehicle of its size and type, but it lagged behind more modern diesel engines. Reliability was generally good, though maintenance costs could be relatively high due to the engine’s age and the availability of parts.
Legacy
The Mahindra Bolero CJ7 2.5 D 4WD laid the groundwork for the continued success of the Bolero line. The 2.5-liter diesel engine, while eventually superseded by more modern units, proved to be remarkably durable and reliable. Today, these vehicles are still commonly found in rural areas of India, serving as workhorses for farmers and businesses. In the used car market, the Bolero CJ7 2.5 D 4WD is valued for its simplicity, affordability, and off-road capability. While not a collector’s item, it remains a popular choice for those seeking a rugged and dependable utility vehicle. Its enduring presence is a testament to its robust design and its ability to meet the needs of its target market.
