Suspension is vital for ensuring a smooth ride, maximising traction, maximising braking ability and providing the driver full control of the vehicle.
Primary role of suspension
The suspension is predominantly made up of shock-absorbers, control arms and springs.
There are different types of springs, with most modern vehicles utilising the coil kind.
The shock-absorbers role is to absorb impact, make the ride comfortable and provide stability control.
Symptoms your car needs a suspension check
You may notice the following issues –
- Imbalance when braking
- Tyres wearing out faster than usual
- Tyres showing uneven wear, flat spots or feathering
- Instability at high speeds
- Vehicles with electronically controlled suspension can display a warning error
It is paramount to have your vehicle inspected if your car begins to exhibit any of these issues.
How often does suspension need checking & servicing?
As part of regular car servicing, our technicians will perform both an electronic suspension test and a test drive. We also perform a visual check for leakages or obviously damaged parts.
This process is relatively quick and will determine whether a full suspension service is required.
As a rule of thumb, suspension should be electronically checked at each service, and a full check/suspension service should be performed as per the manufacturer’s recommendations.
Please note, at JDM P/L, we perform an electronic & visual inspection at each service.
The process to electronic suspension tests
JDM P/L has invested in a state of the art diagnostic tool referred to as a Safe-T-Stop.
Our technicians use the Safe-T-Top to perform tests to simulate impact to each corner of the vehicle.
The device predominantly measures
- Suspension firmness (too hard or too soft)
- Braking power
- Brake balance
- Handbrake function
- Wheel alignment/toe status
The device prints a report of the readings, which we provide to our customers.
Once the suspension has been repaired, we repeat the electronic suspension test to ensure it has been repaired correctly.
What vehicles can you perform an electronic suspension check on?
We can perform an electronic suspension check on vehicles that are less than 4.5 tonne. This includes cars, 4WDs, caravans & light commercial vehicles.
We also specialise in new vehicles that have electronically controlled suspension. This is a delicate task because we must connect to the vehicle’s ECU and programmatically input the manual items we are performing.
As an example, you cannot simply hoist a vehicle with electronic suspension without letting the vehicle’s computer know. This ensures the electronic sensors remain perfectly calibrated.