There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2015 Volvo XC70 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)I replaced a catalytic converter and 2 O2 sensors a few months ago. Check engine light came on. Oil was pooling into the catalytic converter from the engine. Technician checked pistons. Said there was unusual wear and oil was coming in through the pistons.
My Volvo XC70 has had a sudden and significant increase in oil consumption. I believe this is due to the pistons which Volvo is now acknowledging. They refuse to issue a recall or to repair my very well maintained vehicle. Continue operation requires up to 2 quarts of oil every 500 miles! It also presents an ongoing risk of sudden engine malfunction and dangerous stoppage, I have all my records which shows my car has been maintained and the cause is faulty pistons. Volvo must be held accountable.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.