BLIS / CTA issue.

[Boatie]

Just got my car back after bodywork repairs to the rear nearside specifically on and above the wheel arch. (Volvo approved repairer). Now the BLIS is throwing spurious warnings, sometimes nearside , sometimes offside and occasionally both together. I also suspect that CTA isn't working. Everything turned on and no dash warnings. Before taking it up with the repairers Monday AM can anyone confirm exactly where the sensors are located. I'm sure they're behind the rear 'bumper' which was undermanaged but undoubtly removed . Are there any others maybe above the arch or even in front of it.

Many thanks

[ian77]

The BLIS/CTA sensor location is shown here for the C90, it’s similar in my V60 so I assume the 90 is similar too. It gets affected if the paint is too think so if they’ve blended in a repair that might have caused trouble. Of course an approved repairer should know that…

https://www.volvocars.com/in/support...nance-for-blis

[Boatie]

Originally Posted by ian77

The BLIS/CTA sensor location is shown here for the C90, it’s similar in my V60 so I assume the 90 is similar too. It gets affected if the paint is too think so if they’ve blended in a repair that might have caused trouble. Of course an approved repairer should know that…

https://www.volvocars.com/in/support...nance-for-blis

Thanks for your response. So far as I can determine the repair didn't extend to the area indicated although 'bumper' must have been removed. Just been for a short run and the issue's still there. Confirmed that the CTA has faults. The delivery driver made no mention of the problem. Fortunately I signed an acceptance form and added "subject to examination in daylight".

[cumbrian lad]

Had a similar issue with a 2015 XC60 following a rear end shunt.

Following body repairs BLIS either wouldn’t detect vehicles or it would pick static items up like crash barriers.

I had the body shop with the assistance of the dealer look at it several times, tried recalibration but no to avail. The insurer even paid £800 for new BLIS sensors still not working correctly. In the end Volvo themselves got involved and recommended that the bracket that holds the BLIS sensor inside the body panel be replaced …..

Lo & behold it worked. Theory was either the body shop had disturbed it or it had been a result of the shunt.

The near side was the worst offender, offside appeared to work fine.

Hope this helps.

[Boatie]

Originally Posted by cumbrian lad

Had a similar issue with a 2015 XC60 following a rear end shunt.

Following body repairs BLIS either wouldn’t detect vehicles or it would pick static items up like crash barriers.

I had the body shop with the assistance of the dealer look at it several times, tried recalibration but no to avail. The insurer even paid £800 for new BLIS sensors still not working correctly. In the end Volvo themselves got involved and recommended that the bracket that holds the BLIS sensor inside the body panel be replaced …..

Lo & behold it worked. Theory was either the body shop had disturbed it or it had been a result of the shunt.

The near side was the worst offender, offside appeared to work fine.

Hope this helps.

Thanks for that. In my case the body damage was restricted to above the rear nearside wheel arch. Had the body shop out and they successfully recalibrated or whatever.