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The Daily Insight

Where is the thermostat on a Mazda Bongo?

Author

Matthew Wilson

Updated on March 01, 2026

PRODUCT: Mazda Bongo Friendee & Ford Freda Coolant Thermostat. DESCRIPTION: Located under the driver’s seat (O/S).

Are Mazda Bongos any good?

Excellent versatile vehicle but obviously getting on so a few issues with upkeep as it does need tlc regularly. But it has mod cons, is very comfortable to drive, the most versatile car on the road. We can carry 8 people, sleep 4 adults and 2 children or 4 adults, 2 children and 2 childrens bikes.

How do I test my car thermostat?

Start your car’s engine and allow it to idle. Look through the radiator filler neck to see if the coolant flows. At this time, it should not be flowing as your car has not reached the operating temperature to cause the thermostat to open. If you find the coolant is flowing, it means the thermostat valve is open.

How do you bleed a Mazda Bongo cooling system?

Simpler Method

  1. Fill the system as much as possible when cold.
  2. Start the engine and reach normal hot temperature.
  3. Remove the bleed tube bung (don’t use funnel or add water to bleed tube)
  4. Bleed the system, making sure expansion/header tank does not empty and bleed tube doesn’t take in air.
  5. Make sure bottom hose gets hot.

Are Mazda Bongos reliable?

There are a number of problems associated with the Mazda Bongo, which in some cases have given it a bad name. The most well-known dilemma is head gasket failure, resulting in expensive repair bills, especially if the cylinder head has cracked.

Can the Mazda Bongo deal with overheating?

Ok, so usually if a vehicle overheats it can deal with it to a certain extent. The Mazda Bongo unfortunately does not cope well at all. The Mazda Bongo cylinder head is very fragile to overheating. It can be weakened very easily.

What is the Mazda Bongo coolant alarm?

This upgrade is referred to as the Mazda Bongo coolant alarm, also termed a low-level coolant alarm. This in-line sensor alarm gives the user notification on the cooling level.

How often should I change the coolant in my Mazda Bongo?

Mazda Bongo Coolant / Antifreeze The recommended replacement interval to change the coolant in a Mazda Bongo is every 2 years. Remember antifreeze has a corrosion inhibitor in it, so will protect the internals of all those metal pipes & radiator.

What is the tyre size of a Mazda Bongo?

Mazda Bongo Tyres. Tyre size: 2 & 4 wheel drive (2.5L turbo diesel & 2wd 2.0L petrol) Front: 195/70 R15 92S (inflation pressure 30 PSi) Rear: 215/65 R15 96S (inflation pressure 34 PSi) NOTE: 4WD vehicles can sustain serious drive train damage if the wrong tyre sizes are fitted!