Proton Automotive Repair Manuals

Interesting Facts About Proton You Probably Don’t Know – Common Problems – and PDF Manuals for Download…

Proton or PROTON Holdings Berhad is an automobile manufacturing, designing, distribution and sales organization based in Malaysia. The company was established in 1983 and is headquartered in Selangor.

Originally, Proton was a manufacturer of Mitsubishi Motors rebadged products in the 1980s and 1990s; but in the year 2000, the company designed and produced its first non-badge engineered car.

This led Malaysia to become the 11th country in the world which can design and produce cars from the ground. Since then, the company has been producing many badge engineered and locally engineered vehicles.

At present, more than 15 countries are the markets for Proton cars and most of them are in Asia.

Currently, Proton is undergoing a major transformation process which is the part of a long-term turnaround plan.

The company which was heavily dependent on the domestic market is making changes in its structure in the hope of regaining the profits and increase its presence in the international markets.

The concept was envisioned by the Malaysian Government in 1979 and in 1982, the project was approved by the Cabinet.

In 1983, Proton was founded and wholly owned by the Malaysian government. In the beginning, it approached Mitsubishi and agreed to jointly build the first production of Malaysian cars.

The result was 1985 model, Proton Saga which was based on Mitsubishi engine. After that, few other models were launched that shared the engine from Mitsubishi and one of the new models, Saga Iswara was widely used for commercial purposes in Malaysia.

Among all the models launched till late, 1990s were made with the collaboration from Mitsubishi until the company began producing its own indigenously designed car in August 2000.

It featured a Mitsubishi engine and this launch ended the Proton’s reliability on other automobile manufacturers for the vehicle parts and platforms.

Then, in 2004, Proton launched the first car having the Malaysian-made engine, Campro.

In 2004, Proton increased its empire by purchasing 57.57 percent of MV Augusta’s share. But the misfortunes of MV Augusta affected Proton as well and the company sold MV Augusta next year.

Then in the later part of the 2000 decade, Proton launched Persona saloon as the replacement of Proton Wira. The external appearance was almost similar, and had many new and advanced features at discounted prices.

It was an immediate hit in Malaysia and recorded huge sales volume in the coming time. In 2008, the product collaboration with Mitsubishi was resumed and Proton gained the special rights to rebadge Mitsubishi Lancer of 2007.

Proton Inspira was the collaborative result and this launch also strengthened the ties between both the companies.

From the very beginning, Proton has actively maintained its presence in motorsports. Proton with Japanese company Mitsubishi has participated in various Asian and International motor rallies.

Mitsubishi was not the only company it partnered with and rebadged their cars, as it partnered with different other automobile companies for their different models.

The other companies it partnered with are Citroen of France, Youngman of China, Honda and Suzuki. When it partnered with Suzuki, it rebadged their famous model Ertiga.

Common Proton Problems

Proton is the most well-known brand in Malaysia. The company used Mitsubishi engines in its cars and later used the self-made engines.

The technological support from Japanese auto maker and highly progressive facilities led it to produce of the best cars in Malaysia.

The cars are also exported to other countries. Here are some commonly found problems in different models of Proton that can be solved using the repair manuals.

Very few car owners had these complaints and knowing them will lead to diagnose the problems at an early stage in your car.

  1. Engine Lights: In some Proton G2 cars, the users experienced that engine warning light lit without any reason. Even after finding the engine in good condition, the light didn’t shut. The cause of the problem might be faulty wiring. Get your car checked from an experienced automobile technician or go through the repair manual.
  2. Proton Distributor problem: In some Proton cars, distributor related problems have been commonly reported. A hall effect sensor is with which Proton distributor units are connected. With the rotation of the distributor, ECU receives a signal and a pulse is sent to ignition module that amplifies current to send to the coil.
    In case of malfunctioning of sensor, no signal develops which results in no spark at the plug. The only solution to this problem is replacing the hall sensor using the repair manual.
  3. Airflow Meter: In Proton cars, failure of airflow meter is also found commonly. The amount of air passing in the engine is measured by airflow meter.
    The working of airflow meter can be classified as the amount of current it can take to keep the wire at a specific temperature. The fault may not be detected in the simple diagnostic and you can see the meter still operating in the limits that are believed to be sufficient.
    To get it properly diagnosed put right amount of fuel, give full throttle and the result will be a weak mixture and a lack of power. Good thing is that airflow meters are very easy to change and usually take only 5 minutes to fit.
  4. Ignition Coil: In some makes of Proton Waja, owners complained that their cars were not starting properly and sometimes they experienced cold start. The root cause of this type of problem may be bad ignition coil and if the car is not starting at all, the ignition coil might have failed.
    In case of ignition coil failure, the correct amount of charge is not transmitted to spark plug. This issue can alleviate in winter season and a replacement of ignition coil will solve the problem.
  5. Fuel Pump Failure: Some users of the Proton Waja model complained that while driving the car and accelerating it, its speed was not increasing. This is a common problem in Waja model and the reason is failure of the fuel pump. Replacement will get the car back to normal.


These are some of the common problems that people reported about Proton brand cars. Not all cars suffer from these problems and if you are aware of them, you can quickly get your car repaired on time using your car repair manual.


Purpose of this is to catalog and include one of most comprehensive, useful and accessible “automotive repair PDF manual” database on the web for all Proton models.

It’s your go-to source for learning all about Proton – when you can’t find it elsewhere.

To get started, select the intended car model below…

About Us

Total Car Diagnostics helps fellow home car owners, mechanics, technicians, garage shops, engineers, ECU programmers and auto repair centers — to significantly cut down on maintenance, repair costs, time, money, energy... and all other frustrating headaches involved with dealing with vehicles — by providing cost-effective advice, tools and recommendations.

facebook Total Car Diagnostics  LinkedIn Total Car Diagnostics  YouTube Total Car Diagnostics

Home | About Us | Contact | Terms of Service | Privacy Policy | Tuning Disclaimer | Affiliate Program | Shop

Address: PO Box 1315, Byron Bay, NSW 2481, Australia. Support phone: (+61) 401 605 241

© Copyright 2019 by Total Car Diagnostics. All Rights Reserved.