Symptoms Reported by the Customer
The customer had multiple problems before bringing the vehicle into our service, therefore the Bentley Continental required an expert evaluation.
The most obvious problem was the Check Engine Light on the dashboard. The consumer also reported that the side windows would not fully close when locking the vehicle. The car had been sitting for some months, so there were concerns regarding the battery’s health, the operation of the electronic systems and the condition of the car in general.
Common symptoms reported included:
- Check Engine Light illuminated.
- Windows are not closing fully when locking the vehicle.
- Sitting in the driveway for months on end, unused.
- Worry about battery health
- Request for full diagnostic inspection
- Service recommendation and repair estimate request
These symptoms are prevalent in luxury automobiles after being idle for long periods of time and should never be disregarded as they can lead to more expensive repairs if left unresolved.
Vehicle Collection and Initial Inspection
Our team arranged a free vehicle pickup and brought the Bentley Continental to our workshop for inspection.
Upon receiving the vehicle, our techs ran a full computer diagnostic check and also performed a physical inspection.
The customer originally wanted a Minor Service. However during our inspection we found the vehicle needed a Major Service plus a number of other repairs due to the vehicle being inactive for a lengthy period of time and wear and tear of components.
Computer Diagnostics Findings
After conducting a full system scan, multiple issues were identified that caused the Check Engine Light and other warning messages.
1. Engine Misfire Due to Worn Spark Plugs and Ignition Coils
The diagnostic report revealed engine misfire faults.
Further inspection showed that the spark plugs and ignition coils had deteriorated, resulting in insufficient engine power and rough engine performance.
Since the vehicle had not been driven regularly for several months, these components required replacement to restore proper engine operation.
Recommended Repair
- Replace Spark Plugs (Original Parts)
- Replace Ignition Coils
- Clear Fault Codes
- Perform Road Test
2. Faulty Angle Sensor
Our diagnostic equipment also detected an angle sensor fault.
This issue was contributing to warning messages stored within the vehicle’s electronic control systems.
Recommended Repair
- Replace Angle Sensor
- Perform System Calibration
- Verify Steering and Electronic System Functions
3. Low Main Battery Voltage
During battery testing, we determined the vehicle’s main battery voltage was below the recommended threshold.If you don’t drive for long periods of time, your battery can deteriorate, which can cause several electrical issues and warning lights.
Recommended Solution
- Changing the Main Battery
- Inspect Charging System
- Test electrical system performance
Window Closing Issue Diagnosis
The customer reported that the windows were not fully closing when the vehicle was locked.
After inspection, our technicians discovered that the window lift motors were not operating correctly.
The motors failed to complete the automatic closing cycle, leaving the windows slightly open.
Recommended Repair
- Replace Window Lift Motors
- Recalibrate Window Control System
- Test Automatic Window Function
TPMS Warning Detected
While reviewing the vehicle’s computer systems, our technicians found an additional fault related to the Tire Pressure Monitoring System (TPMS).
The warning was caused by faulty tire pressure sensors.
Recommended Repair
- Replace Tire Pressure Sensors
- Program New Sensors
- Verify Proper System Operation
Additional Engine Condition Found During Inspection
While preparing the vehicle for service, our technicians noticed excessive sludge and contamination inside the engine oil system.
The engine oil had become unusually thick due to prolonged storage and delayed maintenance.
To protect the engine and improve lubrication performance, an engine flush was recommended before refilling with fresh oil.
Recommended Repair
- Engine Flush
- Oil System Cleaning
- Premium Engine Oil Replacement
Why We Recommended a Major Service Instead of a Minor Service
A common question we get from clients is why a vehicle needs a Major Service when they originally asked for a Minor Service.
A Minor Service is usually fine for vehicles that have been serviced periodically and used consistently throughout the year. It includes engine oil change, filter check, fluid top-ups and basic safety checks.
However, we did see that a number of key maintenance items had passed their recommended service intervals on this Bentley Continental. The spark plugs were worn, the ignition system needed care and the engine oil condition indicated that the car had not been properly maintained for a long time.
This gave rise to the Major Service as the safest and most cost effective way to restore vehicle reliability and performance.
Performing only a Minor Service would not have addressed the underlying issues discovered during diagnostics.
Major Service Performed
After discussing our findings with the customer and receiving approval, our technicians carried out a complete Bentley Continental Major Service.
Service Items Completed
Engine Maintenance
- Engine Oil Replacement
- Oil Filter Replacement (Original)
- Air Filter Replacement (Original)
- AC Filter Replacement (Original)
- Spark Plug Replacement (Original)
- Engine Belt Replacement (Original)
Fluid Services
- Coolant Top-Up
- Power Steering Fluid Top-Up
- AC Gas Top-Up
- Windshield Washer Fluid Top-Up
- Inspection of All Vehicle Fluids
Brake and Safety Inspection
- Brake Inspection
- Brake Cleaning
- Battery Health Check
- Lighting System Inspection
Tire Services
- Tire Rotation
- Tire Pressure Adjustment
- Tire Inspection
- Wheel Balancing (If Required)
Final Checks
- Complete Computer Diagnostic Report
- Full Vehicle Inspection
- Test Drive
- Interior Cleaning
- Exterior Cleaning
Bentley Continental Undergoing Service
Why Engine Flushing Was Necessary
One of the most important discoveries during our inspection was the condition of the engine oil.
When a vehicle remains parked for extended periods or misses scheduled maintenance, contaminants can build up inside the engine lubrication system. Over time, engine oil breaks down and loses its ability to protect critical engine components.
The contaminated oil in this Bentley had thickened to a sludge-like consistency, which can restrict oil flow and increase engine wear.
An engine flush helps remove deposits and contamination before fresh oil is added.
Benefits of engine flushing include:
- Improved oil circulation
- Cleaner engine internals
- Reduced engine wear
- Better lubrication performance
- Improved engine efficiency
For luxury vehicles such as Bentley, maintaining a clean lubrication system is essential for long-term engine reliability.
Service Cost Overview
Minor Service Cost
For a Bentley Continental 2013 model:
Estimated cost in between AED 1,000 – AED 1,500
Includes:
- Engine Oil Service
- Filter Cleaning
- Vehicle Inspection
- Computer Diagnostics
Major Service Cost
For a Bentley Continental 2013 model:
Estimated cost in between AED 2,500 – AED 3,500
Includes:
- Original Spark Plugs,
- Original Filters
- Replace engine belt
- Services Fluid
- Computerised Diagnosis
- Full Vehicle Inspection
Other repairs including ignition coils, battery replacement, angle sensor replacement, window motors and TPMS sensors are quoted separately depending on vehicle condition and parts needed.
Why Long-Term Parking Can Cause Problems in Luxury Cars
Luxury vehicles such as the Bentley Continental contain advanced electronic systems that require regular operation.
When a vehicle remains parked for several months, it can develop issues, including:
- Low Battery Voltage
- Check Engine Light Alerts
- Engine failure
- Failures of window modules
- Faults in the TPMS Sensor
- Formation of Sludge
- Electrical System Faults
So we always advise a comprehensive diagnostic check before putting a long-stored car back into normal operation.
Our Recommendations for Bentley Owners
Based on our experience servicing luxury vehicles across Dubai, we recommend that Bentley owners:
- Follow manufacturer-recommended service intervals.
- Avoid leaving vehicles parked for extended periods without starting them.
- Maintain battery health through regular charging and testing.
- Address Check Engine Light warnings immediately
- Replace ignition components at recommended intervals.
- Inspect TPMS sensors and electronic systems regularly.
- Perform diagnostic scans whenever warning lights appear.
Taking preventive action helps reduce repair costs and keep luxury vehicles operating at peak performance.
Final Results
Follow the service intervals suggested by the maker.
- Don’t leave your car parked for long amounts of time without starting it.
- Make sure the battery stays healthy by trying and charging it regularly.
- Take care of Check Engine Light signs right away
- Replace parts of the key at the times suggested.
- Check the TPMS sensors and electrical systems often.
- Whenever warning lights show up, do medical scans.
Avoiding problems before they happen lowers the cost of repairs and keeps high-end cars running at their best.
Why Choose Car Garage Expert for Bentley Repair in Dubai
Bentley vehicles require specialized knowledge, advanced diagnostic equipment, and experienced technicians.
At Car Garage Expert, we provide:
- Bentley Computer Diagnostics
- Bentley Major and Minor Services
- Bentley Engine Repairs
- Bentley Electrical Diagnostics
- Bentley Battery Replacement
- Bentley Window Motor Repairs
- Bentley TPMS Repairs
- Free Vehicle Pickup and Delivery
- Transparent Inspection Reports
Our goal is to provide accurate diagnostics, quality repairs, and exceptional customer service for Bentley owners throughout Dubai.
Need Bentley Repair or Service in Dubai?
If your Bentley Continental is experiencing a Check Engine Light, engine misfire, battery problems, window issues, or has been parked for a long period, Car Garage Expert can help. Book your appointment today.
Our experienced technicians provide professional Bentley diagnostics, servicing, and repair solutions across Dubai with free vehicle pickup and delivery.
