Similar changes can have different causes. Separating observations from diagnosis helps avoid a rushed decision to replace parts. Prepare the following details before requesting service.
Points worth noting
Record when the sound occurs and how long it lasts. A brief starting sound differs from persistent heavy knocking. Include any simultaneous cooling loss, failure to start or displayed error in your enquiry.
Information for the technician
After selecting the brand, provide the model code. Components and error codes can vary within the same brand.
Choose an area in Baku, Sumgait or Absheron. Availability and arrival time for your address are confirmed when you enquire.
Next step
Describe symptoms and model → Diagnosis and an agreed quote → Appropriate repair and final checks
The quote is agreed after diagnosis, based on work and parts. Confirm payment and warranty terms before ordering.