2009 — 2011
1.7L (M266) - B170 BlueEFFICIENCY
Petrol
Check the CVT transmission smoothness | Description: During your test drive, accelerate steadily and watch the tachometer. If you notice any 'hunting' or jerky transitions, it’s worth noting as the Autotronic CVT transmissions in these models can become sensitive with age.
Test the panoramic sunroof operation | Description: Open and close the sunroof completely while parked. If you hear grinding or stuttering, the complex rail mechanisms common in the W245 may require lubrication or alignment.
Verify the climate control performance | Description: Toggle through all temperature settings and airflow directions. These models can occasionally experience issues with air distribution flaps sticking, which is a labor-intensive fix.
Listen for suspension clunks at low speed | Description: Drive over speed bumps or uneven surfaces at low speed. Clicking or knocking sounds from the front end often point toward wear in the suspension bushings or drop links, which is standard for a car of this vintage.
Consider a full transmission fluid and filter flush to keep the CVT happy.
Check the condition of the drive belt and idler pulleys for any signs of aging.
Inspect the suspension components, particularly control arm bushings, which may be reaching the end of their service life.
Ensure regular engine oil changes using high-quality synthetic oil to protect the M266 engine internals.
Keep an eye on the coolant reservoir levels, as older plastic expansion tanks can sometimes develop hairline fractures.
Check the cabin air filter regularly to ensure the ventilation system stays fresh and airflow remains strong.
Monitor tyre wear patterns, as the W245 benefits greatly from a professional wheel alignment every 12 months.
Keep the engine bay tidy to help identify any small oil or coolant 'weeps' early before they become bigger jobs.
Estimated repair costs if issues arise
While the transmission is robust, it requires specific fluid changes to maintain longevity. If you find the shifting becomes less smooth over time, you should set aside funds for a professional diagnostic and fluid service.
Given the age of the W245, it is wise to plan for a general refresh of the front suspension components, such as wishbones or bushings, which improve steering feel and ride comfort.
The air conditioning system on these models can occasionally lose efficiency. If it requires a re-gas or a new compressor down the track, it's helpful to have a contingency fund ready.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer