diff --git a/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_hr.py b/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_hr.py
new file mode 100644
index 0000000000..21648fc1dc
--- /dev/null
+++ b/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_hr.py
@@ -0,0 +1,83 @@
+"""Fixes for MPI-ESM1-2-HR model."""
+
+from ..fix import Fix
+from ..shared import add_scalar_height_coord
+
+
+class Tas(Fix):
+    """Fixes for tas."""
+
+    def fix_metadata(self, cubes):
+        """
+        Adds missing height2m coordinate.
+
+        Parameters
+        ----------
+        cube: iris.cube.CubeList
+
+        Returns
+        -------
+        iris.cube.CubeList
+
+        """
+        for cube in cubes:
+            add_scalar_height_coord(cube)
+
+        return cubes
+
+
+class Ta(Fix):
+    """Fixes for ta."""
+
+    def fix_metadata(self, cubes):
+        """
+        Corrects plev coordinate var_name.
+
+        Parameters
+        ----------
+        cube: iris.cube.CubeList
+
+        Returns
+        -------
+        iris.cube.CubeList
+
+        """
+        for cube in cubes:
+            plev = cube.coord('air_pressure')
+            plev.var_name = 'plev'
+
+        return cubes
+
+
+class Va(Ta):
+    """Fixes for va."""
+
+
+class Zg(Ta):
+    """Fixes for zg."""
+
+
+class Ua(Ta):
+    """Fixes for ua."""
+
+
+class SfcWind(Fix):
+    """Fixes for sfcWind."""
+
+    def fix_metadata(self, cubes):
+        """
+        Adds missing height10m coordinate.
+
+        Parameters
+        ----------
+        cube: iris.cube.CubeList
+
+        Returns
+        -------
+        iris.cube.CubeList
+
+        """
+        for cube in cubes:
+            add_scalar_height_coord(cube, height=10.0)
+
+        return cubes
diff --git a/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_xr.py b/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_xr.py
new file mode 100644
index 0000000000..c3ae86a6a6
--- /dev/null
+++ b/esmvalcore/cmor/_fixes/cmip6/mpi_esm1_2_xr.py
@@ -0,0 +1,29 @@
+"""Fixes for MPI-ESM1-2-XR model."""
+
+from .mpi_esm1_2_hr import Tas as BaseTas
+from .mpi_esm1_2_hr import Ta as BaseFix
+from .mpi_esm1_2_hr import SfcWind as BaseSfcWind
+
+
+class Tas(BaseTas):
+    """Fixes for tas."""
+
+
+class Ta(BaseFix):
+    """Fixes for ta."""
+
+
+class Va(BaseFix):
+    """Fixes for va."""
+
+
+class Zg(BaseFix):
+    """Fixes for zg."""
+
+
+class Ua(BaseFix):
+    """Fixes for ua."""
+
+
+class SfcWind(BaseSfcWind):
+    """Fixes for sfcWind."""
diff --git a/esmvalcore/cmor/_fixes/shared.py b/esmvalcore/cmor/_fixes/shared.py
index 5acb7a1ffc..ea7482cf3a 100644
--- a/esmvalcore/cmor/_fixes/shared.py
+++ b/esmvalcore/cmor/_fixes/shared.py
@@ -17,7 +17,10 @@ def add_scalar_depth_coord(cube, depth=0.0):
                                        long_name='depth',
                                        units=Unit('m'),
                                        attributes={'positive': 'down'})
-    cube.add_aux_coord(depth_coord, ())
+    try:
+        cube.coord('depth')
+    except iris.exceptions.CoordinateNotFoundError:
+        cube.add_aux_coord(depth_coord, ())
     return cube
 
 
@@ -30,7 +33,10 @@ def add_scalar_height_coord(cube, height=2.0):
                                         long_name='height',
                                         units=Unit('m'),
                                         attributes={'positive': 'up'})
-    cube.add_aux_coord(height_coord, ())
+    try:
+        cube.coord('height')
+    except iris.exceptions.CoordinateNotFoundError:
+        cube.add_aux_coord(height_coord, ())
     return cube
 
 
@@ -42,7 +48,10 @@ def add_scalar_typeland_coord(cube, value='default'):
                                           standard_name='area_type',
                                           long_name='Land area type',
                                           units=Unit('no unit'))
-    cube.add_aux_coord(typeland_coord, ())
+    try:
+        cube.coord('area_type')
+    except iris.exceptions.CoordinateNotFoundError:
+        cube.add_aux_coord(typeland_coord, ())
     return cube
 
 
@@ -54,7 +63,10 @@ def add_scalar_typesea_coord(cube, value='default'):
                                          standard_name='area_type',
                                          long_name='Ocean area type',
                                          units=Unit('no unit'))
-    cube.add_aux_coord(typesea_coord, ())
+    try:
+        cube.coord('area_type')
+    except iris.exceptions.CoordinateNotFoundError:
+        cube.add_aux_coord(typesea_coord, ())
     return cube