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Malabon Diesel Timeline

2019 Yanmar accredits Malabon Diesel for Electronically-Controlled Yanmar systems


Yanmar appoints Malabon Diesel as Service Representative

yanmar marine logo vector 600

2010 Bosch appoints Diesel King as DG Specialist (Equipment Distributor)

November 2007

DK logo

Obet opens Diesel King Injection Pump Calibration Services, in response to a call from Robert Bosch Philippines --to help Universal Motors Corporation and Isuzu Philippines Corporation lower the fuel system repair cost for the Nissan Patrol and Urvan Estate and the Isuzu DMax.


Business change over. Robert Bosch, Philippines Inc. becomes the new official representative and distributor of ZEXEL products in the Philippines.

bosch-diesel-center-logoBosch accredits Malabon Diesel as Bosch Diesel Center.


Malabon Diesel transfers to a more convenient location, Dagat-Dagatan Ave., Caloocan – a bigger and better diesel service center that is closer to the customers.

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Brand change in Philippines.

dieselkiki-logo zexel-logo

The Diesel Kiki brand name was changed to ZEXEL as product line widens to include systems not directly associated with diesel vehicles.

From pumps and vehicle airconditioners, the company also offered residential airconditioners, the Torsen anti-slip differential technology, airbags and street navigation equipment.

1982 Diesel Kiki authorizes Malabon Diesel Injection Service to render technical and warranty assistance to the assemblers of Isuzu, Mazda, Mitsubishi, and Nissan vehicles.

1978 In a short while, receives an invitation from Diesel Kiki Co. Ltd. Malabon Diesel Injection Service becomes the exclusive service representative of Diesel Kiki in the Philippines.

November 1977

To increase capacity, Malabon Diesel Injection Service transfers to an adjacent property, 37 Chicago.


April 1967

Malabon Diesel Injection Service was established by Mario with three employees – a calibrator, a mechanic and the youngest son, Roberto.

A world-class history


In the early 60’s, Mario C. Bernardo got the idea of entering the Diesel Injection Pump servicing business from a Bosch salesman.

It was in April 17, 1967 when Mario and Obet started a calibration shop for Bosch pumps using a Bosch testbench. The father probably saw the son’s interest in dismantling and assembling small objects as a skill worth putting to better use. Only a teenager at the time, Obet was assigned to oversee the business which they operated with a mechanic and calibrator.

For three years, the business was operating at a loss, but giving up never became an option. On the 4th year, Roberto got married to Gloria (picture below, at the right), who was encouraged to help. On their 5th year, Malabon Diesel was able to develop a substantial customer base in Malabon and Navotas. Vehicle queued as early as 5 a.m. Soon, customers were coming in from as far as Cagayan, the Visayas and Mindanao, and working hours were a regular 15-hour stretch, which started at 7 a.m. and ended at 10 p.m. It was then a time of national progress -- when jeepney builders were assembling diesel vehicles to help sustain the growth of the economy.

In 1977, Malabon Diesel was transferred to an adjacent property to increase capacity. It was after the transfer that an invitation from Diesel Kiki Co. Ltd. people was received. In 1978, Malabon Diesel became the exclusive service representative rendering technical and warranty assistance to support the entry of companies like General Motors.


In 1990, the Diesel Kiki brand name was changed to ZEXEL as product line widened to include systems not directly associated with diesel vehicles -- like car, bus and home airconditioners, Torsen limited-slip differentials, navigation systems and air bags. The change was not limited to the trademark. Customer requirements also changed over time. They started demanding more from their operations. Total vehicle down-time became the most critical issue.

After operating for almost 36 years inside a subdivision, the decision to transfer the shop to a more strategic location – a bigger and better diesel service center that is closer to the customers – was made.

Going full circle, Malabon Diesel later became a proud Bosch Diesel Center. On October 25, 2004 we celebrated the launching of the new Malabon Diesel.

obet and marioenrico 2017 800

Roberto "Obet" Bernardo and son Mario Enrico

Addendum. In 2007, Obet and Gloria invested on new facilities and opened Diesel King Injection Pump Calibration Services. This is in response to a call from Robert Bosch Philippines -- to help Universal Motors Corporation and Isuzu Philippines Corporation lower the pump repair cost for the Nissan Patrol and Urvan Estate and the Isuzu DMax. This facility now serves commonrail diesel vehicle owners.



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Specialist knowledge/Factory-authorized service for: ZEXEL COVEC–equipped Nissan Serena, Homy, Terrano; Mitsubishi Pajero, Exceed; Isuzu Wizard, Bighorn; Hyundai Grand Starex; Kia Pregio, etc. BOSCH VE EDC–equipped Audi, BMW, Land Rover, Mercedes, VW Caravelle; ZEXEL VRZ–equipped Mitsubishi Pajero/CK (4M41), Shogun, Canter, Fighter. ZEXEL MD/ HD-TICS–equipped Isuzu Forward, Giga, Hino Ranger Pro Fuso Fighter, Super Great and Nissan Diesel trucks. BOSCH inline H Pump/RE-EDC–equipped Cummins, MAN, Mercedes, Volvo and Scania. Yanmar ZW and electronic. All ZEXEL–equipped Isuzu Crosswind, Fuego, Elf; Mitsubishi Adventure, Pajero, L300/L200/Strada, Canter; Nissan Frontier, Urvan Escapade, Patrol (SD33/TD42); Ford Everest/Ranger (WLT); Kia K27, Hyundai H100/Starex, etc.

DK logo-100x102Bosch/ZEXEL VP29/VP30/VP44–equipped Isuzu Dmax, Nissan Patrol/Urvan Estate, Cummins, MAN, Volvo trucks/buses; Bosch Commonrail (CRDI/CRI)–equipped Ford Everest, Focus, Ranger; Hyundai Accent, Getz, i30, SantaFe, Starex, Tucson; Kia Carens, Sorento, Sportage; BMW, Mercedes, Volvo, VW-Audi, Peugeot, etc; Bosch CRIN–equipped Fuso, MAN, Mercedes, Scania, Nissan Diesel trucks/buses; HEUI–equipped Isuzu Trooper, Caterpillar, Navistar, Powerstroke; Bosch test equipment–diesel test bench, vehicle diagnostics, battery tester/charger, and other workshop essentials.


Car and Bus airconditioner installation, maintenance and repair.


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