PCV DiaphramTorn. The Check Engine Lamp is illuminated.
full bulletin at NHTSA ↗2011 Jaguar XJ engine problems
moderate 5 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
5
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 5 engine complaints filed for the 2011 Jaguar XJ, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Engine accounts for 28% of all owner complaints filed against this vehicle, across 3 categories tracked.
No new NHTSA engine complaint has been filed on this vehicle in over 3 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Air leak from the right hand camshaft cover assembly due to a split diaphragm within the pressure control valve. Any of the following DTCs (indicating an air intake system leak) could be stored in the Powertrain Control Module (PCM) ? P2187, P2189, P0505, P0507.
full bulletin at NHTSA ↗Issue: The customer reports a coolant leak from the engine compartment which is found to originate from the thermostat housing seam.
full bulletin at NHTSA ↗Customers report the ECO Stop/Start is not working. Retailers are testing the primary battery using the Midtronics EXP-1080 tester which is reporting the battery is serviceable. The vehicle then returns with the same Customer concern of ECO Stop/Start inoperative. If a Midtronics GRX-3080 is used, the primary battery fails the test. Replacement of the primary battery resolves the concern.
full bulletin at NHTSA ↗A clatter/knock/rattle noise may be heard from the engine.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 5 most recent
I have a 2011 Jaguar XJL Supercharged with 65,000 miles that has a knocking noise and is in restricted performance mode. The timing chain and tensioner were replaced by a shop, but that did not fix the issue and I’ve been told there is internal engine damage. The internal engine damage has not been identified. The car itself is in excellent shape, but I don’t know how to proceed to address the…
2011 xj is exhibiting problems similar to those contained in NHTSA campaign id number: 10v332000 for the xk and xf. Specifically, vehicle engine will stutter as if about to stall, which is most noticeable within the first 30 minutes after start up, but persists in varying degrees at all times, especially when idling. Problem is progressively worsening. Problem reported to dealer who had…
The engine stalled without warning just before I was about to make a left-hand turn. *js
The contact owns a 2011 Jaguar XJ. The contact stated while driving 75 MPH, the vehicle began to decelerate independently, prompting the contact to pull over to the shoulder of the roadway to have the vehicle towed. Several unknown warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the engine. The contact was informed that the engine…
The contact owned a 2011 Jaguar XJ. The contact stated that while driving at an undisclosed speed, the vehicle decelerated independently. The contact pulled over to the shoulder of the roadway and had the vehicle towed. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the engine. The contact was informed…
Had engine trouble with your 2011 Jaguar XJ?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2011 Jaguar XJ?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 5 complaints filed, engine issues most often appear around 111,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2011/Jaguar/XJ.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.