SSM72865

TOPIx - SSM72865 - Diesel Exhaust Fluid (DEF) Injector Crystallization
Reference
SSM72865
Models
E-PACE / X540
Page 1 of 2
F-PACE / X761
XE / X760
XF / X260
XJ / X351
Title
Diesel Exhaust Fluid (DEF) Injector Crystallization
Category
Engine
Last modified
04-Dec-2017 00:00:00
Symptom
403000 Exhaust System Concerns
Attachments
1DEF Injector Crystallization.pdf (1DEF Injector Crystallization.pdf)
Content
Issue:
Diesel exhaust fluid (DEF) injector crystallization leading to incorrect and unnecessary
replacement.
Cause:
Some crystallization will always be present on the tip of the injector after engine shut
down, this is considered to be normal. The crystallization will quickly disappear after the
engine is started and the exhaust system becomes hot.
Action:
Refer to the attached file which shows a selection of crystallization on the DEF injector
tip.
These pictures show a level of crystallization present on the tip which will not influence
the function of the injector. These pictures are typical of injectors currently being
replaced and returned via warranty and when tested are no fault found.
Always refer to the Diagnostic and Testing Section in TOPIx if help is required
diagnosing concerns with the Selective Catalytic Reduction (SCR) system. Section 309
– Exhaust System.
Technicians - Please rate this SSM and provide comments so that future
communications can be improved.
1 = Poor – Basic information provided – The SSM does not help me resolve the
customer concern.
3 = Average – Adequate information provided – The SSM partially helps me resolve the
customer concern.
https://topix.jaguar.jlrext.com/topix/service/document/859581
12/4/2017
TOPIx - SSM72865 - Diesel Exhaust Fluid (DEF) Injector Crystallization
Page 2 of 2
5 = Excellent – All required information provided to resolve the customer concern.
https://topix.jaguar.jlrext.com/topix/service/document/859581
12/4/2017