Summer season is here
With the weather getting warmer we are starting to see more cars with A/C issues. Here is a Peugeot RCZ […]
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A lot of heater blower issues in this time of year. This vehicles blower was open circuit. Also the speed Control module was burnt along with the plug. Access to all these parts is difficult,the easiest way is to remove the dashboard completely
With the dashboard removed the wiring could be repaired correctly and motor and module fitted securely.
The passenger door had issues with the window and central locking inoperative. We had no communication with the door module. We stripped the door down and gained access to the module, checked all grounds and feeds all OK. We also scoped the communication connections and found these to be good. The module was removed and checked
The module had signs of water ingress.
A new unit was sourced and then had to be coded in
Into our workshop was this Renault with heaterblower trouble. Access to the motor is terrible on these cars. With the glove box and heater ducting on the passenger side removed and the full steering column removed on the drivers side you can see the motor
Although you can see the motor you still can’t get at the wiring. For that you need a special tool to twist and unlock the motor and small hands to get inside the ducting and release the plug onto the motor.
A tough job that we are experienced at here at Widnes Auto Electrical.
The vehicle was brought in with no Blower. We stripped the dashboard to gain access to the motor and control module
The motor was found to be open circuit which would normally mean a new unit. But hear at Widnes Auto Electrical we are experts at repairing electrical motors for various applications.
The motor was stripped and repaired saving the customer over £175 against a replacement unit.
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This Mercedes came in for an electric roof conversion. Normally you would have to sit in the car and hold the roof switch till the roof cycle was complete. With this conversion the process becomes one touch from the keyfob.
Once fitted you can download and adjust settings,even allow the roof to open whilst the car is moving!
This vehicle came in with intermittent heavy steering when turning the steering wheel to the left.
A quick diagnostic code read revealed a problem with the torque sensor. This device is inside the power steering unit.
With the column stripped it was confirmed as faulty and a new unit sourced
Once fitted and test driven, all fault codes cleared and the car drove great.
This C-class came in with air con issues. With our machine connected the pressures were noted and found to be around the normal 10bar on the high side but nearly 0bar on the low. The high side pressures proved the compressor was pumping. The low side pressures suggested that there was a blockage. Through experience we have found the usual place for blockages would be the receiver/dryer or the expansion valve. The valve was removed which was situated at the back of the engine
With the valve removed and examined you could see the valve was stuck closed
With the valve fitted and the system charged the pressures were perfect
And the temperature was perfect
In this week was this BMW with indicator trouble. The indicators were flashing fast on both sides as if a bulb was blown, all bulbs were OK.
Using Autologic diagnostic equipment it showed a fault relating to the footwell module, which controls aswell as other systems all external lights. 
Again using diagnostic equipment we can do a reset on this module which alot of the time can cure the fault. But after doing this the fault remained.
So we stripped the car to gain access to the module and quickly checked all connections to the module, again all was Ok.
The BMW dealer was phoned where we were informed that they had sold 67 of these last month! Ours will have to come from Germany as all stock in UK sold out. Once the part arrives it will need coding in. Job done!
Into our workshop this week was this Merc with parking assist problems and automatic door lock/unlock not working. A full serial scan showed up 2 faulty parking sensors on the front. A check of these sensors confirmed the fault and 2 new sensors sourced.
 
Next we checked the locking system, the normal way it should work is as long as you have the keys on you when you approach the car when you pull the handle on the door it should unlock for you. We stripped the drivers door down and removed the door handle that contains a microswitch that unlocks the door and found water ingress into the switch.
Another week, another vehicle with water ingress causing havoc with electrical systems.
We are seeing more and more cars with water ingress into the cabin and no manufacturer is immune. It seems that manufacturers are finding it hard to build cars suitable for our environment.
Here we see a car with the passenger seat removed and the carpet lifted to reveal the loom and connectors submerged in water causing various systems to stay live when the car was locked up
