Replacement of Glow Plugs 1.9 JTDm 8v

Written By: sebthekiller (and 2 other contributors)

Comments: 6
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Completions: 3

Difficulty

Moderate

Steps

Time Required

01:00:00 - 02:00:00

Introduction

This Tutorial is a set of best practices, advice and recommendations for replacing your brakes. The author of this post cannot be held responsible for any mechanical failure or personal injury that occurs following the operation.

Tools

Parts

Glow plugs × 4

View

Step 1 Materiel

Photo of the material I used.
The 4 New Candles.
Usually when the error message appears only one spark plug is HS. Depending on the mileage it is better to replace the 4 spark plugs simultaneously (which is what we will do here).
It is best to disconnect the vehicle battery before performing this operation.

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Step 2 The Engine Cover

Unscrew the screw indicated by the arrow using the 5mm Allen key.

Then gently pull the plastic cover which is fixed to the 3 other ends using 3 interlocking rubber parts.

The spark plugs are placed quite deep at the back of the engine. Access is not very easy.

Unscrew the screw indicated by the arrow using the 5mm Allen key.
Then gently pull the plastic cover which is fixed to the 3 other ends using 3 interlocking rubber parts.
The spark plugs are placed quite deep at the back of the engine. Access is not very easy.

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Step 3 disassembly support EGR

At the back of the EGR valve you have 3 screws (red arrow). You have to unscrew them using the ratchet and the 13mm socket.

Release the metal bracket (green arrow) by slightly moving the EGR valve apart.

At the back of the EGR valve you have 3 screws (red arrow). You have to unscrew them using the ratchet and the 13mm socket.
Release the metal bracket (green arrow) by slightly moving the EGR valve apart.

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Step 4 Disconnect the pressure sensor

Lever the yellow lock of the pressure sensor socket

By pressing the black hook, disconnect the sensor

Lever the yellow lock of the pressure sensor socket
By pressing the black hook, disconnect the sensor

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Step 5 Location of the candles

From left to right, here are the photos of the connectors of the first 3 spark plugs.

From left to right, here are the photos of the connectors of the first 3 spark plugs.

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Step 6 Disconnect the connectors

Photo 1 shows the connector for the 4th spark plug.

Using the bent piece of coat hanger as pictured.

Disconnect the connectors from the 4 spark plugs. They are "L" shaped. You have to pull on the plastic part, never on the wire!

Photo 1 shows the connector for the 4th spark plug.
Using the bent piece of coat hanger as pictured.
Disconnect the connectors from the 4 spark plugs. They are "L" shaped. You have to pull on the plastic part, never on the wire!
You can help yourself by using the pliers and the wooden wedge for leverage.
Proceed in the same way for the 4 connectors

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Step 7

To unscrew the spark plugs use the ratchet, the 2 extensions, and the 10mm long socket.

In order for the spark plug to come out with the socket, you can put a piece of electrical insulation on the socket. In this way, once unscrewed, the spark plug will not fall out of the socket when removing it.

To unscrew the spark plugs use the ratchet, the 2 extensions, and the 10mm long socket.
In order for the spark plug to come out with the socket, you can put a piece of electrical insulation on the socket. In this way, once unscrewed, the spark plug will not fall out of the socket when removing it.
Proceed in the same way for the 4 candles.

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Step 8 Screwing in the New Spark Plugs

Screw the spark plugs back in the same way. First you insert the spark plug into the socket with the end of the electrical tape on the side so that it does not fall out.

Screw the spark plugs back in the same way. First you insert the spark plug into the socket with the end of the electrical tape on the side so that it does not fall out.
You carefully insert it into its slot.
Be careful not to screw up the thread! Do not force it at the beginning of the screwing. The spark plug should screw in with little resistance, if this is not the case it is because you have positioned it incorrectly.
Once screwed in, tighten sparingly!
All you have to do now is reconnect the connectors.
To put them in place you can use the rod that you used to remove them and by pressing with the ratchet extension to engage it.
You will feel a slight "click" when the connector is properly engaged.
Don't forget to reassemble the EGR valve bracket and reconnect the turbo pressure sensor

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Step 9 Replacing the engine cover

Check that the rubber clips are still on the cover and not on the engine. If not, unhook them from the engine and replace them on the cover.

Position and snap the cover into place by pressing lightly on the clips.

Make sure the clips are positioned in the correct place

Check that the rubber clips are still on the cover and not on the engine. If not, unhook them from the engine and replace them on the cover.
Position and snap the cover into place by pressing lightly on the clips.
Make sure the clips are positioned in the correct place
Screw the cover screw back in and you're done!
The dashboard error message disappears after 3 starts of the vehicle. You can also clear the error message using an ODB diagnostic tool if you have one.