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Service bulletin S29846

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10146094
Published by NHTSA2018-10-29
Manufacturer's numberS29846
Manufacturer's date2018-05-02
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This is a Quality Bulletin. Volvo Car USA LLC and Volvo Car Canada LTD (Volvo) on behalf of Volvo Car Corporation, has decided to launch Service Campaign S29846 on certain model year 2016 XC90 vehicles. Volvo has identified that engine coolant may leak due to an insufficient quick connector in the coolant expansion tank bleeder hose. Should this condition occur, a message in the Driver Information Module (DIM) will appear informing the driver about low coolant level and in a worse case situation high engine temperature. The corrective action is to replace the coolant expansion tank bleeder hose.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
VOLVO XC902016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20191882019-04-18. Engine
19V3080002019-04-17. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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34123.1.72024-05-08. Service bulletin. This is a Technical Journal: T8 P0EA773 Auxiliary Cooling System Performance. install component 32139082
TJ329032023-04-24. Service bulletin. T8 DTC BECM?P0CE100 Coolant Control Valve ?A? Stuck On.
TJ33442d2023-04-24. Service bulletin. Left engine pad click sound
TJ33442c2023-04-24. Service bulletin. Left engine pad click sound
TJ322162023-04-24. Service bulletin. Drive-E: Low oil level message in Driver Information Module (DIM)
TJ319552023-04-24. Service bulletin. Recall R89707: Air conditioner drain hose
SMB003212023-04-24. Service bulletin. To further enhance the customer?s Volvo ownership experience, Volvo Car USA, LLC offers the MY 2013 and later Volvo Complimentary Factory Scheduled Maintenance Program. Model Year 2013 and later vehicles, the service intervals are every 10,000 miles and ALL 2013 and later vehicles must use synthetic oil only.
S298462023-04-24. Service bulletin. Volvo Car USA LLC and Volvo Car Canada LTD (Volvo) on behalf of Volvo Car Corporation, has decided to launch Service Campaign S29846 on certain model year 2016 XC90 vehicles. Volvo has identified that engine coolant may leak due to an insufficient quick connector in the coolant expansion tank bleeder hose. Should this condition occur, a message in the Driver Information Module (DIM) will appear informing the driver about low coolant level and in a worse case situation high engine temperature.